CN117072119B - Device for harmless treatment of drilling cuttings - Google Patents
Device for harmless treatment of drilling cuttings Download PDFInfo
- Publication number
- CN117072119B CN117072119B CN202311048762.4A CN202311048762A CN117072119B CN 117072119 B CN117072119 B CN 117072119B CN 202311048762 A CN202311048762 A CN 202311048762A CN 117072119 B CN117072119 B CN 117072119B
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- rock debris
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- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 238000005520 cutting process Methods 0.000 title claims description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 154
- 239000011435 rock Substances 0.000 claims abstract description 153
- 238000012216 screening Methods 0.000 claims abstract description 72
- 238000000926 separation method Methods 0.000 claims abstract description 70
- 238000005979 thermal decomposition reaction Methods 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 109
- 238000004088 simulation Methods 0.000 claims description 62
- 238000000197 pyrolysis Methods 0.000 claims description 58
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 38
- 230000001105 regulatory effect Effects 0.000 claims description 37
- 238000002386 leaching Methods 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 23
- 238000012937 correction Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004811 liquid chromatography Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 19
- 238000005406 washing Methods 0.000 abstract description 16
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 239000012265 solid product Substances 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 9
- 239000000376 reactant Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000013076 target substance Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000001944 accentuation Effects 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/10—Applications of devices for generating or transmitting jigging movements
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of drilling waste treatment, in particular to a device for harmless treatment of drilling rock scraps, which comprises a feeding mechanism, a separating mechanism, an exhaust mechanism, a discharging mechanism, a detecting mechanism and a control mechanism. According to the invention, the feeding baffle is arranged, the feeding amount is accurately controlled, the control mechanism is combined with the screening equipment and the camera to judge whether the vibration amplitude of the screen is required to be adjusted, so that the uniformity of rock debris on the screen is ensured, the separation effect is further ensured, the screening equipment is arranged, solids and liquid fall through the sieve holes in the thermal decomposition separation process, the structure is simple, the separation method is simple, convenient and effective, the washed solid products are collected by arranging the discharging bin, the water collecting tank is arranged, waste liquid generated by washing is collected intensively, the post-treatment is facilitated, the rock debris is effectively treated and discharged by accurately separating the mixture of the drilling rock debris, and the secondary pollution to the environment due to incomplete pollutant treatment is avoided.
Description
Technical Field
The invention relates to the technical field of drilling waste treatment, in particular to a device for harmless treatment of drilling cuttings.
Background
The waste water-based rock debris produced by petroleum drilling is composed of bentonite, sulfonated polymer organic matters, surfactants, petroleum, barite powder, rock debris, heavy metals and water, wherein the sulfonated polymer organic matters, petroleum, heavy metals and the like are very harmful to the environment; the traditional innocent treatment of the waste water-based rock debris of the petroleum drilling adopts methods such as solidification landfill, deep well reinjection, throwing, high-temperature pyrolysis, chemical coagulation reinforcement liquid separation and the like; the problems of incomplete pollutant treatment, secondary pollution, high treatment cost and the like exist in different degrees of the methods; at present, the threat of the rock debris to the environment and human health is reduced by separating the harmful substances from the harmless substances in the rock debris, or mixing the rock debris with a curing agent to form a hard solid block, or converting the harmful substances into the harmless substances through high-temperature combustion.
Chinese patent publication No.: CN110372076a discloses a drilling cuttings treating agent and a preparation method thereof, which has the technical points that an iron aluminum silicate polymer is prepared to be capable of carrying out chemical reaction with various chemical treating agents in the drilling cuttings to generate harmless sediment, and can adsorb and deactivate heavy metal ions in the drilling cuttings, thereby realizing harmless treatment and recycling of the drilling cuttings; therefore, the technical field of harmless treatment of the existing drilling cuttings is lacking, the drilling cuttings mixture is accurately separated in a closed system, efficient solid-gas separation and solid-liquid separation are achieved, and the drilling cuttings separation precision is improved, so that the cuttings can be effectively treated and removed conveniently, and the problem of secondary pollution to the environment due to incomplete pollutant treatment is avoided.
Disclosure of Invention
Therefore, the invention provides a device for harmless treatment of drill cuttings, which is used for solving the problem that the drill cuttings cannot be accurately separated from the drill cuttings mixture in the prior art, so that the drill cuttings can be effectively treated.
In order to achieve the above object, the present invention provides an apparatus for innocent treatment of drill cuttings, comprising,
the feeding mechanism is used for conveying rock scraps to be treated into the rock scraps box, and is further provided with a feeding baffle with adjustable opening;
the separating mechanism comprises screening equipment and leaching equipment, wherein the leaching equipment is arranged on the upper side of the screening equipment and used for spraying water, the screening equipment is used for screening rock scraps to be treated, a screen and a vibrating motor connected with the screen are arranged on the leaching equipment, and the vibrating motor is used for driving the screen to vibrate;
the exhaust mechanism is used for extracting and discharging volatile matters in the rock debris box, and a pressure regulating valve used for regulating the pressure in the rock debris box and discharging gas is arranged on the exhaust mechanism;
the discharging mechanism is arranged at the lower side of the separating mechanism and is used for collecting solid rock debris and liquid passing through the screen;
The detection mechanism comprises a concentration detector arranged on the exhaust mechanism, a temperature sensor arranged on one side of the interior of the rock debris box and a weight sensor arranged on the screen, wherein the concentration detector is used for detecting the real-time gas concentration of a target volatile substance, the temperature sensor is used for detecting the real-time pyrolysis temperature of the interior of the rock debris box, and the weight sensor is used for detecting the real-time feeding weight of rock debris to be processed on the screen;
the control mechanism is respectively connected with the concentration detector, the weight sensor, the temperature sensor, the leaching equipment, the feeding baffle plate, the vibration motor and the pressure regulating valve; the control mechanism adjusts the opening of the feeding baffle when judging that the real-time feeding weight is in the standard screening weight range;
when the real-time feeding weight is judged to be larger than the standard screening weight range and the real-time simulation thickness is judged to be larger than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a first correction amplitude for material paving operation;
when the real-time feeding weight is judged to be larger than the standard screening weight range and the real-time simulation thickness is judged to be smaller than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a second correction amplitude for material paving operation;
When thermal decomposition separation reaction is carried out on rock debris to be treated, the control mechanism adjusts the opening of the pressure regulating valve when judging that the real-time concentration change rate is smaller than the standard concentration change rate, the real-time gas concentration is smaller than the standard gas concentration and the real-time pyrolysis temperature is smaller than the preset pyrolysis temperature;
and starting the leaching equipment to spray water when the real-time concentration change rate is smaller than the standard concentration change rate and the concentration change rate is negative.
Further, the screen cloth upside is provided with the screen cloth baffle that is used for blockking waiting to handle the detritus whereabouts, control mechanism can be in when the feeding baffle is opened, control the screen cloth baffle inserts, and control vibrating motor opens with predetermineeing vibration range, control mechanism can also control the screen cloth baffle and withdraw from, and open firing equipment is right the detritus incasement portion heats to predetermineeing thermal decomposition temperature, carries out thermal decomposition separation reaction.
Further, the control mechanism is provided with a standard screening weight range, when the feeding baffle is opened, rock scraps to be treated are conveyed to the screen through the feeding slideway arranged on the feeding mechanism, the control mechanism obtains the real-time feeding weight of the rock scraps to be treated through the weight sensor, and judges the real-time feeding weight according to the standard screening weight,
If the real-time feeding weight is smaller than the standard screening weight range, the opening of the feeding baffle is not adjusted;
if the real-time feeding weight is within the standard screening weight range, acquiring the maximum extension length of the feeding baffle, and adjusting the opening of the feeding baffle according to the maximum extension length;
if the real-time feeding weight is greater than the standard screening weight range, the feeding baffle is closed, and any real-time simulation thickness is judged according to the standard thickness range so as to determine whether the working state of the vibrating motor is adjusted;
Ks=KmX [1- (Gs-Gb 2)/Gs ], wherein Ks is the opening of the feeding baffle which is adjusted in real time, km is the maximum extension length of the feeding baffle, gs is the real-time feeding weight detected by the weight sensor, gb2 is the set second screening weight, the first screening weight and the second screening weight form a standard screening weight range, and the first screening weight is smaller than the second screening weight.
Further, a standard thickness range and a first preset distance are arranged in the control mechanism, when the control mechanism judges that the real-time feeding weight is larger than the standard screening weight range, the control mechanism controls the feeding baffle to be closed, controls the camera arranged on the upper side of the inside of the rock debris box to start scanning the rock debris to be processed on the screen, acquires each real-time simulation thickness, judges any real-time simulation thickness according to the standard thickness range,
If the real-time simulation thickness is smaller than the standard thickness range, judging the real-time area according to the standard area to determine whether to adjust the preset vibration amplitude of the vibration motor;
if the real-time simulation thicknesses are all within the standard thickness range, carrying out thermal decomposition and separation reaction on rock fragments to be treated;
if the real-time simulation thickness is larger than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a first correction amplitude, and operating the vibration motor with the preset vibration amplitude until the real-time simulation thickness is judged to be within the standard thickness range or the real-time simulation thickness is smaller than the standard thickness range;
when the camera starts to scan rock debris to be processed on the screen, taking any vertex of the screen as a starting point, sequentially acquiring real-time simulation thickness of target side images with a first preset distance along the longer side length direction of the two screens, acquiring the longer side length distance of the screen as an actual side length, taking a point of the starting point passing through the actual side length as an end point, and turning in the vertical direction of the current scanning route until the rock debris to be processed is completely scanned when the current scanning route reaches the end point;
F1 =fc× [1+ (Hs-Hb)/Hs ], F1 is the calculated first correction amplitude adjusted in real time, fc is the preset vibration amplitude of the vibration motor set, hs is the real-time simulated thickness for acquiring the target side image, and Hb is the set standard thickness range.
Further, a standard area is arranged in the control mechanism, when the control mechanism judges that the real-time simulation thickness is smaller than the standard thickness range, the control mechanism takes the target position as the center of a circle, acquires the continuous simulation area of rock debris to be processed on the screen, which meets the real-time simulation thickness and is smaller than the standard thickness range, as the real-time area, judges the real-time area according to the standard area,
if the real-time area is smaller than or equal to the standard area, carrying out thermal decomposition and separation reaction on rock scraps to be treated;
if the real-time area is larger than the standard area, adjusting the preset vibration amplitude of the vibration motor to a second correction amplitude, repeating the operation that the camera scans rock debris to be processed on the screen, judging any real-time simulation thickness according to the standard thickness range until the real-time simulation thickness is judged to be within the standard thickness range, and operating the vibration motor with the preset vibration amplitude to perform thermal decomposition separation reaction on the rock debris to be processed;
Wherein f2=fc× [1+ (As-Ab)/As ], F2 is a calculated second correction amplitude adjusted in real time, fc is a preset vibration amplitude of the vibration motor, ab is a standard area of the screen, and As is any real-time area of the screen.
Further, the control mechanism is internally provided with a standard concentration change rate, when the rock debris to be treated is subjected to thermal decomposition separation reaction, the control mechanism obtains the absolute value of the concentration change rate in a unit period as the real-time concentration change rate according to the real-time gas concentration of the target volatile matter detected by the concentration detector, judges the real-time concentration change rate according to the standard concentration change rate,
if the real-time concentration change rate is smaller than the standard concentration change rate, judging the real-time gas concentration according to the standard gas concentration to determine the thermal decomposition and separation state of the rock debris to be treated in the rock debris box;
if the real-time concentration change rate is greater than or equal to the standard concentration change rate, judging the positive and negative of the concentration change rate to determine whether to control the leaching equipment to spray water.
Further, the control mechanism is internally provided with a standard gas concentration, when the control mechanism judges that the real-time concentration change rate is smaller than the standard concentration change rate, the control mechanism acquires the real-time gas concentration of the target volatile substance detected by the concentration detector and judges the real-time gas concentration according to the standard gas concentration,
If the real-time gas concentration is smaller than the standard gas concentration, judging the real-time pyrolysis temperature according to the preset pyrolysis temperature to determine the separation state of the rock debris to be treated in the rock debris box;
and if the real-time gas concentration is greater than or equal to the standard gas concentration, not adjusting the state in the rock debris box.
Further, the control mechanism is internally provided with the lowest gas concentration, when the control mechanism judges that the real-time concentration change rate is smaller than the standard concentration change rate and the real-time gas concentration is smaller than the standard gas concentration, the control mechanism acquires the real-time pyrolysis temperature in the rock debris box detected by the temperature sensor and judges the real-time pyrolysis temperature according to the preset pyrolysis temperature,
if the real-time pyrolysis temperature is smaller than the preset pyrolysis temperature, adjusting the opening of the pressure regulating valve;
if the real-time pyrolysis temperature is greater than or equal to the preset pyrolysis temperature, the leaching equipment starts the water spraying operation, and stops the water spraying operation until the real-time gas concentration is less than the minimum gas concentration, so that the thermal decomposition and separation reaction of the rock debris to be treated is completed;
wherein Qs '=qs× [1+ (Tc-Ts)/Ts ], qs' is the opening of the pressure regulating valve adjusted, qs is the initial opening of the current pressure regulating valve obtained, ts is the real-time pyrolysis temperature detected by the temperature sensor, and Tc is the preset pyrolysis temperature obtained.
Further, the control means acquires the concentration change rate in the unit period and determines the positive and negative of the concentration change rate when determining that the real-time concentration change rate is equal to or greater than the standard concentration change rate,
if the concentration change rate is positive, the leaching equipment does not start the water spraying operation;
and if the concentration change rate is a negative value, the leaching equipment starts the water spraying operation until the leaching equipment stops the water spraying operation when the real-time gas concentration is less than the minimum gas concentration, so that the thermal decomposition and separation reaction of the rock debris to be treated is completed.
Further, after the control mechanism finishes the thermal decomposition separation reaction of the rock debris to be treated, volatile matters in the gas collecting tank of the exhaust mechanism are converted into liquid through cooling compression, filling, sealing and conveying operations are carried out, a discharging bin of the discharging mechanism is pulled out along the direction of a horizontal guide rail, solid rock debris collected in the discharging bin is purified through liquid chromatography, filling, sealing and conveying operations are carried out, and waste liquid treatment operations are carried out on liquid contained in a liquid collecting tank of the discharging mechanism through activated carbon adsorption.
Compared with the prior art, the invention has the beneficial effects that the thermal decomposition separation reaction is carried out on rock scraps to be treated in a closed system, the pollution to the environment caused by leakage of harmful substances is avoided, the flow control is carried out in the process of conveying the rock scraps to be treated, the separation precision is low because of overlarge error of the amount of the materials entering is avoided, the vibration motor and the screen are arranged, the material spreading operation is carried out by adjusting the vibration amplitude of the screen after the materials are input, the material distribution on the screen is detected by combining a camera, whether the vibration amplitude of the screen is required to be adjusted is judged, the uniformity of the materials is ensured to adapt to the device, the contact area between the materials and a heat source and the heat transfer efficiency are improved, the reaction rate is accelerated, the separation effect is enhanced, the solid and the liquid fall through the screen holes in the thermal decomposition separation process, the separation method is simple and effective in structure, and the screen mesh is driven to vibrate through the vibrating motor, so that the screening effect is improved, volatile substances in the rock debris box are timely extracted through the arrangement of the fan and the ventilation opening, the volatile substances are discharged into the gas collecting box for collection through the arranged exhaust pipeline, the smoothness of gas flow is guaranteed through the arrangement of the pressure regulating valve, the heating equipment is matched, the temperature state in the rock debris box is regulated through controlling the opening of the pressure regulating valve, the temperature rising time is reduced adaptively, the separation efficiency is improved, the leaching equipment is controlled to spray water operation when the control mechanism judges that the pyrolysis separation is about to be completed, the separation time is reduced on the premise of not affecting the separation effect, the separation effect is improved, the solid products after washing are collected through the arrangement of the material outlet bin, and the waste liquid generated by washing is collected intensively through the arrangement of the water collecting tank, the device is convenient for post-treatment, and is convenient for effectively treating and removing the drill cuttings by accurately separating the drill cuttings mixture, so that secondary pollution to the environment caused by incomplete pollutant treatment is avoided.
Further, the feeding baffle is started and the vibration equipment is started, so that rock scraps to be processed are evenly paved while being input, the structure is simple, the method is effective, and the problem that the separation effect is poor due to falling of the rock scraps in the current material inputting process is avoided by arranging the screen separator.
Further, the control mechanism is used for judging the real-time feeding weight according to the standard screening weight by setting the standard screening weight range, if the control mechanism judges that the real-time feeding weight is smaller than the standard screening weight range, the feeding amount actually entering the screen is far smaller than the set standard value, the input flow of the feeding amount does not need to be regulated, if the control mechanism judges that the real-time feeding weight is in the standard screening weight range, the feeding amount entering the screen is close to the set standard value, the opening of the feeding baffle is required to be regulated, the opening of the feeding baffle is regulated in real time, the opening of the feeding baffle is regulated to be equal to the standard screening weight range, and the opening of the feeding baffle is zero, namely the feeding baffle is closed.
Further, through setting up standard thickness range to control mechanism judges arbitrary real-time simulation thickness according to standard thickness range, if control mechanism judges that there is real-time simulation thickness to be less than standard thickness range, indicate that there is actual material thickness value on the screen cloth to be less than the standard value of settlement, will judge real-time area according to standard area to confirm the degree of consistency of material on the screen cloth, if control mechanism judges that real-time simulation thickness all is in standard thickness range, it is even to indicate the material on the screen cloth, will carry out pyrolysis treatment to the detritus on the screen cloth, if control mechanism judges that there is real-time simulation thickness to be more than standard thickness range, indicate that there is actual material thickness value to be more than the standard value of settlement on the screen cloth, then through controlling vibrating motor accentuation screen cloth vibration amplitude, make the material produce bigger jump motion on the screen cloth, and then pave the material.
In particular, through setting up standard area to control mechanism is when judging that there is real-time simulation thickness to be less than standard thickness scope, further judge real-time area according to standard area, if control mechanism judges that real-time area is less than or equal to standard area, it does not influence the homogeneity of detritus on the screen cloth to indicate that real-time simulation thickness is less than standard thickness scope's area, if control mechanism judges that real-time area is greater than standard area, it is great to indicate that real-time simulation thickness is less than standard thickness scope's area, can influence the homogeneity of detritus on the screen cloth, then increase the vibration range of screen cloth, increase the vertical distance that the material moved on the screen cloth, promote the position adjustment between the material granule, reach better shop effect, more evenly distribute on the screen cloth promptly, in order to improve the contact area and the heat transfer efficiency between pending detritus and the heat source, thereby improve pyrolysis separation effect.
Further, the standard concentration change rate is set, the control mechanism is used for judging the real-time concentration change rate according to the standard concentration change rate, the control mechanism is used for monitoring the thermal decomposition reaction state in the rock debris box in real time, if the control mechanism is used for judging that the real-time concentration change rate is smaller than the standard concentration change rate, the real-time gas concentration is judged according to the standard gas concentration, so that the thermal decomposition reaction state in the rock debris box is determined, if the control mechanism is used for judging that the real-time concentration change rate is larger than or equal to the standard concentration change rate, the real-time concentration change is fast, the gas concentration is possibly increased, the gas concentration is possibly decreased, and the positive and negative of the concentration change rate are judged.
Further, by setting the standard gas concentration, the control mechanism judges the real-time gas concentration according to the standard gas concentration, if the control mechanism judges that the real-time gas concentration is smaller than the standard gas concentration, the concentration of the target volatile substance is lower, the reaction is slow at the beginning of the thermal decomposition reaction, and the reaction is nearly consumed when the thermal decomposition reaction is nearly completed, the product is reduced, and the real-time pyrolysis temperature is judged according to the preset pyrolysis temperature, so that the thermal decomposition reaction state in the rock debris box is determined.
Further, whether the thermal decomposition reaction is finished is judged by the control mechanism through setting the lowest gas concentration, if the control mechanism judges that the real-time pyrolysis temperature is smaller than the preset pyrolysis temperature, the real-time concentration change rate is smaller than the standard concentration change rate and the real-time gas concentration is smaller than the standard gas concentration due to insufficient temperature in the rock debris box, the opening of the pressure regulating valve is regulated to increase the temperature in the rock debris box, the reaction process is promoted, if the control mechanism judges that the real-time pyrolysis temperature is larger than or equal to the preset pyrolysis temperature, the real-time concentration change rate is smaller than the standard concentration change rate and the real-time gas concentration is smaller than the standard gas concentration due to massive consumption of reactants in the rock debris box, the leaching equipment starts the water spraying operation, the solid product is washed, the washing operation step is automatically controlled in time, the separation efficiency is improved, and the separation effect is guaranteed.
In particular, the control mechanism judges whether the concentration change rate is positive or negative so as to determine the current thermal decomposition reaction state, if the control mechanism judges that the concentration change rate is positive, the concentration of the generated target substance gas is larger because the reactant is in a rapid consumption state, at the moment, the reaction is completed for a period of time, the washing operation is not needed temporarily, and if the control mechanism judges that the concentration change rate is negative, the concentration of the generated target substance gas is smaller because the reactant is largely consumed, namely, the reaction is in a state to be completed, the washing equipment starts the water spraying operation, and the washing operation is performed on the solid product.
Further, through carrying out aftertreatment operation to each partial product after the accurate separation, the effective treatment and the exclusion of detritus of being convenient for avoid causing secondary pollution to the environment because pollutant treatment is not thorough.
Drawings
FIG. 1 is a front view of an apparatus for innocent treatment of drill cuttings in accordance with an embodiment of the present invention;
fig. 2 is a side view of an apparatus for innocent treatment of drill cuttings in accordance with an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 and 2, fig. 1 is a front view of an apparatus for innocuous treatment of drilling cuttings according to an embodiment of the present invention, and fig. 2 is a side view of an apparatus for innocuous treatment of drilling cuttings according to an embodiment of the present invention, where the apparatus for innocuous treatment of drilling cuttings includes a cuttings box 1, a feeding mechanism, a feeding chute 201, a storage hopper 202, a feeding baffle 203, a separating mechanism, a sieving device, a fixing bracket (not shown), a screen 302, a vibrating motor (not shown), a screen separator 303, a heating device 304, a rinsing device 305, an exhaust mechanism, a fan 401, a vent 402, an exhaust channel 403, a pressure regulating valve 404, a gas collecting box 405, a discharging mechanism, a discharging bin 501, a horizontal guide 502, a liquid collecting tank 503, a detecting mechanism, a concentration detector 601, a temperature sensor 602, a camera 603, a weight sensor 604, and a control mechanism (not shown),
the feeding mechanism comprises a feeding slideway 201, a storage hopper 202 connected with the feeding slideway 201 and a feeding baffle 203 arranged at one end of the storage hopper 202, wherein the storage hopper is used for storing rock scraps to be processed, the feeding slideway 201 is used for conveying the rock scraps to be processed into the rock scraps box 1, and the feeding baffle 203 is used for controlling the flow of the rock scraps to be processed;
The separating mechanism comprises a heating device 304, a screening device and a leaching device 305, wherein the heating device 304 is arranged on the upper side of the inside of the rock debris box 1, the screening device is arranged on the upper side of the screening device, the heating device 304 is used for heating the inside of the rock debris box 1, the leaching device 305 is used for spraying water, the screening device comprises a fixed support, a screen 302 arranged on the fixed support, a vibrating motor connected with the screen 302 and a screen partition 303 arranged on the upper side of the screen 302, the screen 302 is used for supporting and screening rock debris to be treated, the vibrating motor is used for driving the screen 302 to vibrate, and the screen partition 303 is used for blocking the rock debris to be treated from falling;
the exhaust mechanism comprises a fan 401 and a vent 402 which are arranged at the top of the rock debris box 1, a gas collection box 405 which is arranged at the outer side of the rock debris box 1 and is connected with the vent 402 through an exhaust channel 403, and a pressure regulating valve 404 which is connected with the exhaust channel 403, wherein the vent 402 is used for extracting volatile substances in the rock debris box 1 and discharging the volatile substances into the gas collection box 405 through the exhaust channel 403, and the pressure regulating valve 404 is used for regulating the pressure in the rock debris box 1 and releasing gas into the gas collection box 405;
The discharging mechanism is arranged at the lower side of the separating mechanism and comprises a discharging bin 501, a horizontal guide rail 502 connected with the discharging bin 501 and a liquid collecting tank 503 arranged at the lower side of the discharging bin 501, a pushing cylinder is arranged on the horizontal guide rail 502 and used for pushing the discharging bin 501 to move forwards and backwards, the discharging bin 501 is used for collecting solid rock debris passing through the screen 302, a hole used for filtering liquid is further formed in the discharging bin 501, and the liquid collecting tank 503 is used for containing the liquid passing through the screen 302;
the detection mechanism comprises a concentration detector 601 arranged on the exhaust channel 403, a temperature sensor 602 arranged on one side of the interior of the rock debris box 1, a camera 603 arranged on the upper side of the interior of the rock debris box 1 and a weight sensor 604 arranged on the screen 302, wherein the concentration detector 601 is used for detecting the real-time gas concentration of a target volatile substance, the temperature sensor 602 is used for detecting the real-time pyrolysis temperature of the interior of the rock debris box 1, the weight sensor 604 is used for detecting the real-time feeding weight of rock debris to be processed, and the camera is used for scanning the rock debris to be processed on the screen;
a control mechanism connected to the concentration detector 601, the camera 603, the weight sensor 604, the temperature sensor 602, the propulsion cylinder, the washing apparatus 305, the screen separator 303, the feed baffle 203, the vibration motor, and the pressure regulating valve 404, respectively; the control mechanism can judge the real-time feeding weight according to the standard screening weight, when the real-time feeding weight is judged to be within the standard screening weight range, the opening of the feeding baffle 203 is adjusted, when the real-time feeding weight is judged to be greater than the standard screening weight range, the feeding baffle 203 is closed, and when the real-time simulation thickness is judged to be smaller than the standard thickness range, the material paving operation is performed by adjusting the preset vibration amplitude of the vibration motor; the control mechanism can also judge the real-time concentration change rate according to the standard concentration change rate when carrying out thermal decomposition separation reaction on rock debris to be treated, and compare the standard gas concentration with the real-time gas concentration when judging that the real-time concentration change rate is smaller than the standard concentration change rate, and compare the real-time pyrolysis temperature with the preset pyrolysis temperature so as to determine whether to adjust the opening of the pressure regulating valve 404; the control mechanism is also capable of opening the rinsing device 305 for water spraying operation when the thermal decomposition and separation process of the rock chips to be treated is about to end.
The rock debris to be treated is subjected to thermal decomposition separation reaction in a closed system, pollution to the environment is avoided, the flow control is performed in the process of conveying the rock debris to be treated by arranging the feeding baffle 203, the separation precision is low due to overlarge error of the amount of the material entering the rock debris to be treated is avoided, the vibration motor and the screen 302 are arranged, the material spreading operation is performed by adjusting the vibration amplitude of the screen 302 after the material is input, the material distribution on the screen 302 is detected by combining the camera 603, whether the vibration amplitude of the screen 302 is required to be adjusted is judged, the uniformity of the material is ensured to adapt to a device, the contact area and the heat transfer efficiency between the material and a heat source are improved, the reaction rate is accelerated, the separation effect is enhanced, the solid and the liquid fall through the screen holes in the thermal decomposition separation process by arranging the screening equipment, the structure is simple, the separation method is simple and effective, the screen 302 is driven to vibrate through the vibrating motor, the screening effect is improved, volatile substances in the rock debris box 1 are timely extracted through the fan 401 and the ventilation opening 402, the volatile substances are discharged into the gas collecting box 405 through the arranged exhaust pipeline to be collected, the smoothness of gas flow is guaranteed through the pressure regulating valve 404, the heating equipment is matched, the opening degree of the pressure regulating valve 404 is controlled, the temperature state in the rock debris box 1 is regulated, the heating time is reduced adaptively, the separation efficiency is improved, the leaching equipment 305 is controlled to spray water when the control mechanism judges that the pyrolysis separation is about to be completed, the separation time is reduced on the premise of not influencing the separation effect, the separation effect is improved, the solid products after washing are collected through the arrangement of the material outlet bin 501, the waste liquid generated by washing is collected intensively through the arrangement of the water collecting tank, the device is convenient for post-treatment, and is convenient for effectively treating and removing the drill cuttings by accurately separating the drill cuttings mixture, so that secondary pollution to the environment caused by incomplete pollutant treatment is avoided.
Specifically, a screen separator 303 for blocking rock debris to be processed from falling is arranged on the upper side of the screen 302, the control mechanism can control the screen separator 303 to be inserted when the feeding baffle 203 is opened, and control the vibration motor to be opened with a preset vibration amplitude, the control mechanism can also control the screen separator 303 to be withdrawn, and the heating device 304 is started to heat the inside of the rock debris box to a preset thermal decomposition temperature for thermal decomposition separation reaction.
The feeding baffle 203 is started and the vibration equipment is started, so that rock scraps to be processed are evenly paved while being input, the structure is simple, the method is effective, and the problem that the separation effect is poor due to falling of the rock scraps in the current material inputting process is avoided by arranging the screen separator 303.
Specifically, the control mechanism is provided with a standard screening weight range, when the feeding baffle 203 is opened, rock debris to be processed is conveyed to the screen 302 through the feeding slideway 201, the control mechanism obtains the real-time feeding weight of the rock debris to be processed through the weight sensor 604, and determines the real-time feeding weight according to the standard screening weight,
if the real-time feeding weight is smaller than the standard screening weight range, the opening of the feeding baffle 203 is not adjusted;
If the real-time feeding weight is within the standard screening weight range, acquiring the maximum extension length of the feeding baffle 203, and adjusting the opening of the feeding baffle 203 according to the maximum extension length;
if the real-time feeding weight is greater than the standard screening weight range, the feeding baffle 203 is closed, and any real-time simulation thickness is judged according to the standard thickness range to determine whether to adjust the working state of the vibrating motor;
where ks=km× [1- (Gs-Gb 2)/(Gb 2-Gb 1) ], ks is the opening of the feeding baffle 203 adjusted in real time, km is the maximum extension length of the feeding baffle 203, gs is the real-time feeding weight detected by the weight sensor 604, gb2 is the set second screening weight, the first screening weight and the second screening weight form a standard screening weight range, and the first screening weight is smaller than the second screening weight.
The standard screening weight range represents the set rock chip feed into the screen 302 for a single thermal decomposition process, the set values being related to the rock chip properties, the screen 302 bearing capacity, the rate of rock chip decomposition; the first screening weight is expressed as a set smaller rock chip feed and the second screening weight is expressed as a set maximum rock chip feed;
By setting the standard screening weight range, the control mechanism judges the real-time feeding weight according to the standard screening weight, if the control mechanism judges that the real-time feeding weight is smaller than the standard screening weight range, the feeding amount actually entering the screen 302 is far smaller than the set standard value, the input flow of the feeding amount does not need to be regulated, if the control mechanism judges that the real-time feeding weight is within the standard screening weight range, the feeding amount entering the screen 302 is close to the set standard value, the opening of the feeding baffle 203 needs to be regulated down, the opening of the feeding baffle 203 is regulated down in real time, until the real-time feeding weight is equal to the standard screening weight range, and the opening of the feeding baffle 203 is zero, namely the feeding baffle 203 is closed.
Specifically, a standard thickness range and a first preset distance are set in the control mechanism, when the control mechanism determines that the real-time feeding weight is greater than the standard screening weight range, the control mechanism controls the feeding baffle 203 to be closed, controls the camera 603 arranged on the upper side of the inside of the rock debris box 1 to start scanning the rock debris to be processed on the screen 302, obtains each real-time simulation thickness, determines any real-time simulation thickness according to the standard thickness range,
If the real-time simulation thickness is smaller than the standard thickness range, judging the real-time area according to the standard area to determine whether to adjust the preset vibration amplitude of the vibration motor;
if the real-time simulation thicknesses are all within the standard thickness range, carrying out thermal decomposition and separation reaction on rock fragments to be treated;
if the real-time simulation thickness is larger than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a first correction amplitude, and operating the vibration motor with the preset vibration amplitude until the real-time simulation thickness is judged to be within the standard thickness range or the real-time simulation thickness is smaller than the standard thickness range;
when the camera 603 starts to scan the rock debris to be processed on the screen 302, taking any vertex of the screen 302 as a starting point, sequentially acquiring real-time simulation thicknesses of target side images with a first preset distance along the longer side directions of the two screens 302, acquiring the longer side length distance of the screen 302 as an actual side length, taking a point of the starting point passing through the actual side length as an end point, and turning in the vertical direction of the current scanning route until the rock debris to be processed is completely scanned when the current scanning route reaches the end point;
F1 =fc× [1+ (Hs-Hb)/Hs ], F1 is the calculated first correction amplitude adjusted in real time, fc is the preset vibration amplitude of the vibration motor set, hs is the real-time simulated thickness for acquiring the target side image, and Hb is the set standard thickness range.
The standard thickness range represents a standard height range of the rock debris to be treated on the screen 302, which is a height range for achieving an optimal screening effect, and the set value is related to the property, shape, space state between devices and vibration state of the screen 302 of the rock debris;
through setting up standard thickness scope to control mechanism judges arbitrary real-time simulation thickness according to standard thickness scope, if control mechanism judges that there is real-time simulation thickness to be less than standard thickness scope, it is less than the standard value that sets for to indicate that there is actual material thickness value on the screen cloth 302, will judge real-time regional area according to standard regional area, in order to confirm the degree of consistency of material on the screen cloth 302, if control mechanism judges that real-time simulation thickness all is in standard thickness scope, it is even to indicate the material on the screen cloth 302, will carry out pyrolysis treatment to the detritus on the screen cloth 302, if control mechanism judges that there is real-time simulation thickness to be more than standard thickness scope, it is greater than the standard value that sets for to indicate that there is actual material thickness value on the screen cloth 302, then through controlling vibrating motor increase screen cloth 302 vibration range, make the material produce bigger jump motion on the screen cloth 302, and then pave the material.
Specifically, a standard area is set in the control mechanism, when the control mechanism determines that the real-time simulation thickness is smaller than the standard thickness range, the control mechanism takes the target position as the center of a circle, acquires the continuous simulation area of the rock debris to be processed on the screen 302, which satisfies the real-time simulation thickness smaller than the standard thickness range, as the real-time area, determines the real-time area according to the standard area,
if the real-time area is smaller than or equal to the standard area, carrying out thermal decomposition treatment on the rock debris to be treated;
if the real-time area is larger than the standard area, adjusting the preset vibration amplitude of the vibration motor to a second correction amplitude, repeating the operation that the camera 603 scans the rock debris to be processed on the screen 302 and judges any real-time simulation thickness according to the standard thickness range until the real-time simulation thickness is judged to be within the standard thickness range, and operating the vibration motor with the preset vibration amplitude to perform thermal decomposition treatment on the rock debris to be processed;
wherein f2=fc× [1+ (As-Ab)/As ], F2 is a calculated second correction amplitude adjusted in real time, fc is a preset vibration amplitude of the vibration motor, ab is a standard area of the screen 302, and As is any real-time area of the screen 302.
The standard area represents an area where the allowable material height is smaller than the standard height range, and the area can be a space state caused by unavoidable gaps among rock scraps, and can also be a space state where the paving error of the rock scraps on the screen 302 does not affect the screening effect of the rock scraps, wherein the set value is related to the property of the rock scraps, the specification of the screen 302 and the separation precision requirement;
through setting up standard area to control mechanism is when judging that there is real-time simulation thickness less than standard thickness scope, further judge real-time area according to standard area, if control mechanism judges that real-time area is less than or equal to standard area, it does not influence the homogeneity of the detritus on screen cloth 302 to indicate that real-time simulation thickness is less than standard thickness scope's area, if control mechanism judges that real-time area is greater than standard area, it is great to indicate that real-time simulation thickness is less than standard thickness scope's area, can influence the homogeneity of detritus on screen cloth 302, then increase the vibration range of screen cloth 302, increase the vertical distance that the material moved on screen cloth 302 promptly, promote the position adjustment between the material granule, reach better spreading effect, promptly more evenly distribute on screen cloth 302, in order to improve the contact area and the heat transfer efficiency between the heat source of waiting to handle detritus, thereby improve thermal decomposition separation effect.
Specifically, the control mechanism is internally provided with a standard concentration change rate, and when the rock debris to be treated is subjected to thermal decomposition and separation reaction, the control mechanism obtains the absolute value of the concentration change rate in a unit period as the real-time concentration change rate according to the real-time gas concentration of the target volatile matter detected by the concentration detector 601, determines the real-time concentration change rate according to the standard concentration change rate,
if the real-time concentration change rate is smaller than the standard concentration change rate, judging the real-time gas concentration according to the standard gas concentration to determine the thermal decomposition and separation state of the rock debris to be treated in the rock debris box 1;
if the real-time concentration change rate is greater than or equal to the standard concentration change rate, determining whether the concentration change rate is positive or negative to determine whether to control the rinsing device 305 to perform water spraying operation.
The preset thermal decomposition temperature represents a set temperature condition for performing thermal decomposition reaction on rock debris to be treated, and the set value is related to the rock debris property and can be set to 300 ℃;
the standard concentration change rate represents the gas concentration change rate of the target volatile matter in a set unit period, the gas concentration change rate of the target volatile matter in the unit period is larger, and the set value is related to the rock debris composition and the concentration change curve rule of the target volatile matter in the thermal decomposition reaction;
The standard concentration change rate is set, the control mechanism is used for judging the real-time concentration change rate according to the standard concentration change rate, the control mechanism is used for monitoring the thermal decomposition reaction state in the rock debris box 1 in real time, if the control mechanism is used for judging that the real-time concentration change rate is smaller than the standard concentration change rate, the real-time gas concentration is judged according to the standard gas concentration, so as to determine the thermal decomposition reaction state in the rock debris box 1, and if the control mechanism is used for judging that the real-time concentration change rate is larger than or equal to the standard concentration change rate, the real-time concentration change is indicated to be faster, the gas concentration is possibly increased, the gas concentration is possibly decreased, and the positive and negative of the concentration change rate is judged.
Specifically, the control mechanism is provided with a standard gas concentration, and when the control mechanism determines that the real-time concentration change rate is smaller than the standard concentration change rate, the control mechanism obtains the real-time gas concentration of the target volatile substance detected by the concentration detector 601, determines the real-time gas concentration according to the standard gas concentration,
if the real-time gas concentration is smaller than the standard gas concentration, judging the real-time pyrolysis temperature according to the preset pyrolysis temperature to determine the separation state of the rock debris to be treated in the rock debris box 1;
If the real-time gas concentration is equal to or higher than the standard gas concentration, the state inside the rock fragment box 1 is not adjusted.
The standard gas concentration represents a set standard gas concentration of the target volatile substance, which is a relatively high stable concentration in a concentration variation curve of the target volatile substance for thermal decomposition reaction, and is related to the concentration variation curve of the target volatile substance for thermal decomposition reaction;
by setting the standard gas concentration, the control mechanism judges the real-time gas concentration according to the standard gas concentration, if the control mechanism judges that the real-time gas concentration is smaller than the standard gas concentration, the concentration of the target volatile substances is lower, the reaction is slow when the thermal decomposition reaction starts, the reaction is also likely to be nearly complete when the thermal decomposition reaction is nearly completed, the product is reduced, and the real-time pyrolysis temperature is judged according to the preset pyrolysis temperature, so that the thermal decomposition reaction state of the rock debris box 1 is determined.
Specifically, the control mechanism is provided with the lowest gas concentration, when the control mechanism determines that the real-time concentration change rate is smaller than the standard concentration change rate and the real-time gas concentration is smaller than the standard gas concentration, the control mechanism obtains the real-time pyrolysis temperature in the rock debris box 1 detected by the temperature sensor 602, determines the real-time pyrolysis temperature according to the preset pyrolysis temperature,
If the real-time pyrolysis temperature is less than the preset pyrolysis temperature, adjusting the opening of the pressure regulating valve 404;
if the real-time pyrolysis temperature is greater than or equal to the preset pyrolysis temperature, the leaching device 305 starts the water spraying operation, and the leaching device 305 stops the water spraying operation until the real-time gas concentration is less than the minimum gas concentration, so as to complete the thermal decomposition and separation reaction of the rock debris to be treated;
where Qs '=qs× [1+ (Tc-Ts)/Ts ], where Qs' is the opening of the pressure regulating valve 404 that is adjusted, qs is the obtained initial opening of the current pressure regulating valve 404, ts is the real-time pyrolysis temperature detected by the temperature sensor 602, and Tc is the obtained preset pyrolysis temperature.
Through setting up minimum gas concentration to control mechanism judges whether thermal decomposition reaction is accomplished, if control mechanism judges that real-time pyrolysis temperature is less than the pyrolysis temperature of predetermineeing, indicate that the inside real-time concentration change rate is less than standard concentration change rate and real-time gas concentration is less than standard gas concentration because the temperature is insufficient of rock debris case 1, then will increase the inside temperature of rock debris case 1 through the aperture of regulating valve 404 of adjusting the pressure, promote the reaction process, if control mechanism judges that real-time pyrolysis temperature is greater than or equal to the pyrolysis temperature of predetermineeing, indicate that the inside of rock debris case 1 is less than standard concentration change rate and real-time gas concentration is less than standard gas concentration because the consumption of reactant is great, then drip washing equipment 305 opens and sprays the water operation, carry out washing operation to the solid product, in time automatic control washing operation step, improve separation efficiency, ensure the separation effect.
Specifically, when the control means determines that the real-time concentration change rate is equal to or greater than the standard concentration change rate, the control means acquires the concentration change rate in the unit period, determines the positive and negative of the concentration change rate,
if the rate of change of concentration is positive, the rinsing apparatus 305 does not turn on the water spraying operation;
if the concentration change rate is negative, the leaching device 305 starts the water spraying operation, and the leaching device 305 stops the water spraying operation until the real-time gas concentration is determined to be less than the minimum gas concentration, so as to complete the thermal decomposition separation reaction of the rock debris to be treated.
The control means determines the positive or negative of the concentration change rate to determine the current thermal decomposition reaction state, if the control means determines that the concentration change rate is positive, it means that the concentration of the generated target substance gas is large because the reactant is in a rapid consumption state, and at this time, there is a period of time from the reaction completion state, and a washing operation is not needed temporarily, and if the control means determines that the concentration change rate is negative, it means that the concentration of the generated target substance gas is small because the reactant is largely consumed, that is, the reaction is in a state to be completed, the washing apparatus 305 starts a water spraying operation, and performs a washing operation on the solid product.
Specifically, after the control mechanism completes the thermal decomposition separation reaction of the rock debris to be treated, volatile matters in the gas collecting tank 405 of the exhaust mechanism are converted into liquid through cooling compression, filling, sealing and conveying operations are performed, the discharging bin 501 of the discharging mechanism is pulled out along the direction of the horizontal guide rail, solid rock debris collected in the discharging bin 501 is purified through liquid chromatography, filling, sealing and conveying operations are performed, and waste liquid treatment operations are performed on liquid contained in the liquid collecting tank 503 of the discharging mechanism through activated carbon adsorption.
Through carrying out aftertreatment operation to each partial product after the accurate separation, be convenient for the effective treatment and the exclusion of detritus, avoid causing secondary pollution to the environment because pollutant treatment is not thorough.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for innocent treatment of drilling cuttings is characterized by comprising,
the feeding mechanism is used for conveying rock scraps to be treated into the rock scraps box, and is further provided with a feeding baffle with adjustable opening;
the separating mechanism comprises screening equipment and leaching equipment, wherein the leaching equipment is arranged on the upper side of the screening equipment and used for spraying water, the screening equipment is used for screening rock scraps to be treated and comprises a fixed support, a screen mesh arranged on the fixed support, and a vibrating motor connected with the screen mesh and used for driving the screen mesh to vibrate;
the exhaust mechanism is used for extracting and discharging volatile matters in the rock debris box, and a pressure regulating valve used for regulating the pressure in the rock debris box and discharging gas is arranged on the exhaust mechanism;
The discharging mechanism is arranged at the lower side of the separating mechanism and is used for collecting solid rock debris and liquid passing through the screen;
the detection mechanism comprises a concentration detector arranged on the exhaust mechanism, a temperature sensor arranged on one side of the inside of the rock debris box, a camera arranged on the upper side of the inside of the rock debris box and a weight sensor arranged on the screen, wherein the concentration detector is used for detecting the real-time gas concentration of target volatile substances, the temperature sensor is used for detecting the real-time pyrolysis temperature of the inside of the rock debris box, and the weight sensor is used for detecting the real-time feeding weight of rock debris to be processed on the screen;
the control mechanism is respectively connected with the concentration detector, the weight sensor, the temperature sensor, the leaching equipment, the feeding baffle plate, the vibration motor and the pressure regulating valve; the control mechanism adjusts the opening of the feeding baffle when judging that the real-time feeding weight is in the standard screening weight range;
when the real-time feeding weight is judged to be larger than the standard screening weight range and the real-time simulation thickness is judged to be larger than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a first correction amplitude for material paving operation;
When the real-time feeding weight is judged to be larger than the standard screening weight range and the real-time simulation thickness is judged to be smaller than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a second correction amplitude for material paving operation;
the control mechanism controls the camera to scan rock debris to be processed on the screen to obtain real-time simulation thicknesses;
when thermal decomposition separation reaction is carried out on rock debris to be treated, the control mechanism adjusts the opening of the pressure regulating valve when judging that the real-time concentration change rate is smaller than the standard concentration change rate, the real-time gas concentration is smaller than the standard gas concentration and the real-time pyrolysis temperature is smaller than the preset pyrolysis temperature;
and starting the leaching equipment to spray water when the real-time concentration change rate is smaller than the standard concentration change rate and the concentration change rate is negative.
2. The apparatus for innocent treatment of drill cuttings according to claim 1, wherein a screen separator for blocking the falling of the cuttings to be treated is provided on the upper side of the screen, the control mechanism is capable of controlling the insertion of the screen separator and controlling the opening of the vibration motor with a preset vibration amplitude when the feeding baffle is opened, and the control mechanism is further capable of controlling the withdrawal of the screen separator, and starting a heating device to heat the inside of the cuttings box to a preset thermal decomposition temperature for thermal decomposition separation reaction.
3. The apparatus for innocent treatment of drilling cuttings according to claim 2, wherein a standard screening weight range is provided in the control mechanism, when the feeding baffle is opened, the cuttings to be treated are conveyed to the screen through a feeding slideway provided on the feeding mechanism, the control mechanism obtains real-time feeding weight of the cuttings to be treated on the screen through the weight sensor, and determines the real-time feeding weight according to the standard screening weight,
if the real-time feeding weight is smaller than the standard screening weight range, the opening of the feeding baffle is not adjusted;
if the real-time feeding weight is within the standard screening weight range, acquiring the maximum extension length of the feeding baffle, and adjusting the opening of the feeding baffle according to the maximum extension length;
if the real-time feeding weight is greater than the standard screening weight range, the feeding baffle is closed, and any real-time simulation thickness is judged according to the standard thickness range so as to determine whether the working state of the vibrating motor is adjusted.
4. The apparatus for innocent treatment of well drilling cuttings according to claim 3, wherein the control mechanism is provided with a standard thickness range and a first preset distance, and when the control mechanism determines that the real-time feeding weight is greater than the standard screening weight range, the control mechanism controls the feeding baffle to be closed, controls the camera arranged on the upper side inside the cuttings box to start scanning the cuttings to be treated on the screen, obtains each real-time simulation thickness, determines any real-time simulation thickness according to the standard thickness range,
If the real-time simulation thickness is smaller than the standard thickness range, judging the real-time area according to the standard area to determine whether to adjust the preset vibration amplitude of the vibration motor;
if the real-time simulation thicknesses are all within the standard thickness range, carrying out thermal decomposition and separation reaction on rock fragments to be treated;
if the real-time simulation thickness is larger than the standard thickness range, adjusting the preset vibration amplitude of the vibration motor to be a first correction amplitude, and operating the vibration motor with the preset vibration amplitude until the real-time simulation thickness is judged to be within the standard thickness range or the real-time simulation thickness is smaller than the standard thickness range;
when the camera starts to scan rock debris to be processed on the screen, any vertex of the screen is taken as a starting point, real-time simulation thickness of target side images with a first preset distance is sequentially acquired along the longer direction of the side length of the two screens, the longer length distance of the side length of the screen is acquired as an actual side length, a point that the starting point passes through the actual side length is taken as an end point, and when the current scanning route reaches the end point, the vertical direction of the current scanning route is used for steering until the rock debris to be processed is completely scanned.
5. The apparatus for innocent treatment of well drilling cuttings according to claim 4, wherein the control mechanism is provided with a standard area, and when the control mechanism determines that the real-time simulation thickness is smaller than the standard thickness range, the control mechanism takes the target position as a center of a circle, acquires a continuous simulation area of the screen, which is to be treated with the cuttings and satisfies the real-time simulation thickness, which is smaller than the standard thickness range, as the real-time area, and determines the real-time area according to the standard area,
if the real-time area is smaller than or equal to the standard area, carrying out thermal decomposition and separation reaction on rock scraps to be treated;
if the real-time area is larger than the standard area, the preset vibration amplitude of the vibration motor is adjusted to be the second correction amplitude, the camera is repeated to scan rock debris to be processed on the screen, any real-time simulation thickness is judged according to the standard thickness range until the real-time simulation thickness is judged to be within the standard thickness range, the vibration motor operates at the preset vibration amplitude, and thermal decomposition and separation reaction are carried out on the rock debris to be processed.
6. The apparatus for innocent treatment of drill cuttings according to claim 5, wherein the control means is provided with a standard concentration change rate, and when performing a thermal decomposition separation reaction on the cuttings to be treated, the control means obtains an absolute value of the concentration change rate within a unit period of time as a real-time concentration change rate from the real-time gas concentration of the target volatile matter detected by the concentration detector, and determines the real-time concentration change rate from the standard concentration change rate,
If the real-time concentration change rate is smaller than the standard concentration change rate, judging the real-time gas concentration according to the standard gas concentration to determine the thermal decomposition and separation state of the rock debris to be treated in the rock debris box;
if the real-time concentration change rate is greater than or equal to the standard concentration change rate, judging the positive and negative of the concentration change rate to determine whether to control the leaching equipment to spray water.
7. The apparatus for innocent treatment of drill cuttings according to claim 6, wherein the control mechanism is provided with a standard gas concentration, and when the control mechanism determines that the real-time concentration change rate is smaller than the standard concentration change rate, the control mechanism obtains the real-time gas concentration of the target volatile matter detected by the concentration detector and determines the real-time gas concentration according to the standard gas concentration,
if the real-time gas concentration is smaller than the standard gas concentration, judging the real-time pyrolysis temperature according to the preset pyrolysis temperature to determine the thermal decomposition and separation state of the rock debris to be treated in the rock debris box;
and if the real-time gas concentration is greater than or equal to the standard gas concentration, not adjusting the state in the rock debris box.
8. The apparatus for innocent treatment of drill cuttings according to claim 7, wherein the control mechanism is provided with a minimum gas concentration therein, acquires a real-time pyrolysis temperature inside the cuttings box detected by the temperature sensor when the control mechanism determines that the real-time concentration change rate is smaller than the standard concentration change rate and the real-time gas concentration is smaller than the standard gas concentration, determines the real-time pyrolysis temperature according to a preset pyrolysis temperature,
if the real-time pyrolysis temperature is smaller than the preset pyrolysis temperature, adjusting the opening of the pressure regulating valve;
and if the real-time pyrolysis temperature is greater than or equal to the preset pyrolysis temperature, the leaching equipment starts the water spraying operation until the leaching equipment stops the water spraying operation when the real-time gas concentration is less than the lowest gas concentration, so that the thermal decomposition and separation reaction of the rock debris to be treated is completed.
9. The apparatus for innocent treatment of well cuttings according to claim 6, wherein the control means acquires the concentration change rate in the unit time period and determines the positive and negative of the concentration change rate when determining that the real-time concentration change rate is equal to or greater than the standard concentration change rate,
If the concentration change rate is positive, the leaching equipment does not start the water spraying operation;
and if the concentration change rate is a negative value, the leaching equipment starts the water spraying operation until the leaching equipment stops the water spraying operation when the real-time gas concentration is less than the minimum gas concentration, so that the thermal decomposition and separation reaction of the rock debris to be treated is completed.
10. The apparatus for innocent treatment of well drilling rock debris according to claim 9, wherein the control mechanism performs a thermal decomposition separation reaction on the rock debris to be treated, converts volatile matters in the gas collecting tank of the exhaust mechanism into liquid state through cooling compression, performs a filling sealing conveying operation, withdraws a discharge bin of the discharge mechanism along a horizontal guide rail direction, purifies solid rock debris collected in the discharge bin through liquid chromatography, performs a filling sealing conveying operation, and performs a waste liquid treatment operation on liquid contained in a liquid collecting tank of the discharge mechanism through activated carbon adsorption.
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| CN202311048762.4A CN117072119B (en) | 2023-08-18 | 2023-08-18 | Device for harmless treatment of drilling cuttings |
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| CN202311048762.4A CN117072119B (en) | 2023-08-18 | 2023-08-18 | Device for harmless treatment of drilling cuttings |
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