CN110280100B - Automatic waste gas treatment process suitable for spraying chamber - Google Patents
Automatic waste gas treatment process suitable for spraying chamber Download PDFInfo
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- CN110280100B CN110280100B CN201910572215.3A CN201910572215A CN110280100B CN 110280100 B CN110280100 B CN 110280100B CN 201910572215 A CN201910572215 A CN 201910572215A CN 110280100 B CN110280100 B CN 110280100B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 60
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 27
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
Abstract
The invention relates to an automatic waste gas treatment process suitable for a spraying chamber, which comprises the following treatment steps: s1, blowing the waste gas in the spraying chamber into the air inlet port by an exhaust fan; s2, the washing tower is used for treating and purifying dust particles and paint particles in the waste gas; s3, physically intercepting floccules in the waste gas by the dynamic shielding device; s4, adsorbing dust in the waste gas by a dust removal filter; s5, changing the wind direction of the waste gas through two pairs of flow passages on the lower side of the dust removal filter; s6, adsorbing organic substances and peculiar smell in the waste gas by an activated carbon adsorption chamber; s7, discharging the clean air at the air outlet into the atmosphere through a discharging device; the invention ensures that the dust particles and the paint particles in the waste gas are mixed with the water vapor more fully, thereby improving the purification effect; each component in the waste gas is respectively treated for many times through the multi-stage treatment equipment, the treatment waste gas amount of the activated carbon filter screen is correspondingly reduced, the activated carbon filter screen is prevented from being blocked, the replacement frequency of the activated carbon filter screen is reduced, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of paint spraying waste gas treatment, in particular to an automatic waste gas treatment process suitable for a spray booth.
Background
The spraying is a part of indoor building construction or decoration, the appearance and weather resistance of a product are determined by spraying, at the present stage, along with the development of science and technology, unmanned automatic spraying is adopted in most areas, but main components of waste gas generated in the spraying operation process of a spraying room are paint particles, dust particles, benzene, non-methane total hydrocarbon, peculiar smell and the like, and pollutants such as the pollutants directly discharged not only pollute the atmospheric environment but also cause great harm to the health of people, so that how to effectively solve the problem of polluted gas generated in the spraying industry becomes urgent;
at the present stage, a split type waste gas treatment process is also used for purifying waste gas, for example, the waste gas firstly passes through a water spraying tower to fully mix dust particles with water so as to remove particulate matters in the air, and then passes through an activated carbon adsorption device to adsorb the waste gas and peculiar smell, so that the purpose of the waste gas is achieved, but the split type waste gas treatment process has the following defects that the height of the water spraying tower is too high, and the maintenance is inconvenient; the air speed of the waste gas entering the water spraying tower from the spraying chamber is too high and is difficult to control, so that the water in the water spraying tower and particles in the waste gas are not fully mixed, and the purification effect is poor; the water drenches the treatment effect of tower to the paint granule not good, leads to subsequent active carbon filter screen to block up easily, needs to change the change frequently, has directly increased the exhaust-gas treatment cost, therefore current spraying exhaust-gas treatment technology has the defect, needs the improvement.
Disclosure of Invention
The invention provides an automatic waste gas treatment process suitable for a spraying chamber, and solves the problems.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
an automatic waste gas treatment process suitable for a spraying chamber comprises waste gas treatment equipment, wherein the gas inlet end of the waste gas treatment equipment is connected with and communicated with the gas outlet end of the spraying chamber, an exhaust fan arranged at the gas outlet end of the spraying chamber blows waste gas into the waste gas treatment equipment, the waste gas treatment equipment comprises a box body, and a gas inlet port and a gas outlet port which are fixed at the left side and the right side of the box body, and a washing tower, a dynamic shield, a dust removal filter and an active carbon adsorption chamber which are connected with the gas outlet port pipe are arranged in the box body and are sequentially communicated end to end; further comprising the steps of:
s1, blowing the waste gas in the spraying chamber into the air inlet port by an exhaust fan;
s2, the washing tower is used for treating and purifying dust particles and paint particles in the waste gas;
s3, physically intercepting floccules formed by mixing paint particles, fibers, stickies and the like in the waste gas with water vapor by using a dynamic shielding device;
s4, adsorbing dust in the waste gas by a dust removal filter;
s5, connecting the lower air outlet of the dust removal filter with the air inlet end pipe of the activated carbon adsorption chamber through a second flow channel, and changing the wind direction of the waste gas from the two pairs of air outlets of the flow channel;
s6, the active carbon adsorption chamber effectively adsorbs organic substances and peculiar smell in the waste gas;
and S7, discharging the clean air at the air outlet into the atmosphere through a discharging device.
Preferably, before the step S1, the method further comprises a step S0 of controlling the flow rate of the exhaust gas entering the air inlet port; the exhaust fan is a speed-regulating fan, the output power of the exhaust fan can be manually or remotely controlled, and the flow rate of the waste gas entering the air inlet port is adjusted according to actual conditions.
Preferably, after the step S1 and before the step S2, the method further includes a step S15 of detecting and uploading each parameter of the exhaust gas entering the air inlet port to a display terminal; the device comprises an air inlet port, a detection system, a display terminal and a control system, wherein the detection system is arranged on the air inlet port and comprises a combustible gas detector, a flow rate detector, a dust detector, a temperature detector and a humidity detector, and is in wireless signal connection with the display terminal through a wireless communication module; the display terminal is an electronic device which can display each parameter, such as a smart phone, a tablet computer, a smart watch, a background monitoring display and the like; further, the combustible gas detector may be of the GC210 type; the flow velocity detector can be a WS-20 type wind speed transmitter; the dust detector can be a JH-GF1000A (I) dust concentration detector; the temperature detector can be a thermometer, and the humidity detector can be a WE600 humidity sensor.
Preferably, in step S15: the combustible gas detector detects whether combustible and explosive gases and the concentration of the combustible and explosive gases are contained in the waste gas flowing in the air inlet port in real time, and transmits the detection result to the display terminal;
the flow rate detector detects the flow rate of the waste gas flowing in the air inlet port and transmits the flow rate value to the display terminal, so that a worker can control the flow rate of the waste gas according to the flow rate value of the waste gas;
the dust detector detects the concentration of dust in the waste gas flowing in the gas inlet port and transmits the concentration value of the dust to the display terminal, so that a worker can control the water spraying amount of the washing tower according to the concentration value of the dust in the waste gas;
temperature detector and humidity detector detect the temperature and humidity in the waste gas that flows in to the inlet port and transmit the temperature, the humidity value of waste gas for display terminal to the temperature and humidity of waste gas can be rationally adjusted according to the temperature, the humidity value in the waste gas to the staff.
Preferably, in step S15, whether combustible and explosive gas exists in the exhaust gas is displayed on the display terminal, if yes, an alarm message is first sent to prompt a worker to process in time, and the following information is displayed on the display terminal: "combustible and explosive gas concentration value"; if not, displaying that the display terminal has no inflammable and explosive gas.
Preferably, the washing tower comprises a liquid spraying pipe group, a primary filtering assembly and a liquid storage pool which are sequentially arranged from top to bottom, the primary filtering assembly comprises a plurality of filtering tank bodies arranged along the Y-axis direction, the lower parts of the filtering tank bodies are detachably mounted on a first supporting part inside the box body through tank racks, and a plurality of PP hollow balls are placed inside the filtering tank bodies; the liquid storage tank comprises a sewage tank, a clean water tank and a sewage purification part, and a sewage port formed at the lower end of the sewage tank is communicated with a circulating liquid inlet on the side surface of the clean water tank through the sewage purification part; the sewage tank is positioned under the primary filtering component, the liquid pump is arranged on the outer side of the clear water tank, the liquid inlet end of the liquid pump is communicated with the liquid inlet pipe penetrating into the clear water tank, the liquid outlet end of the liquid pump is connected with the water inlet end pipe of the liquid spraying pipe group through the vertical collecting pipe,
preferably, in step S2, the scrubber tower treats and purifies dust particles and paint particles in the exhaust gas: the method specifically comprises the step S21 of spraying water to the periphery by a liquid spraying pipe group at high pressure so as to form upper vapor and lower vapor at the periphery of the liquid spraying pipe group and at the lower part of a filtering groove body respectively;
s22, enabling dust particles and paint particles in the waste gas to enter from the air inlet port, float upwards and be mixed with lower steam to form macromolecules, and enabling the macromolecules to fall into a sewage tank under the influence of gravity;
and step S23, enabling part of dust particles and paint particles which are not mixed with lower water vapor after the waste gas entering from the air inlet port floats upwards to pass through the PP hollow sphere of the filtering tank body, floating upwards, mixing with upper water vapor to form macromolecules, descending by gravity, staying in the PP hollow sphere or vertically passing through the PP hollow sphere and then falling into a sewage tank, and accordingly completing the primary purification process of the dust particles and the paint particles in the waste gas.
Preferably, the dynamic shielding device comprises a bracket, a rotating wheel support, an upper baffle, a driving motor, a driving wheel and a rotating filter disc, wherein the upper baffle is detachably and obliquely arranged on the inner side of the top of the box body and is positioned on the upper part of the bracket, the fixed end of the driving motor is arranged on the upper part of the lower end of the upper baffle, the working end of the driving motor downwards penetrates through the upper baffle and then is fixedly connected with the center of the driving wheel, a plurality of mounting positions arranged in an array manner are arranged on the upper part of the bracket, the rotating filter disc is detachably arranged on the mounting positions through filter disc frame bodies, driven wheels are arranged in the middles of the plurality of filter disc frame bodies arranged along the X axis, and the driving wheel is connected with the driven wheels through a rotating belt; a first flow channel is obliquely arranged between the washing tower and the dynamic shielding device, and the height of one end of the first flow channel, which is close to the dynamic shielding device, is higher than that of one end of the first flow channel, which is close to the washing tower; the driving motor works to drive the driving wheel to rotate, and then the belt and the driven wheels are rotated to drive a row of a plurality of rotary filter discs arranged along the X axis to rotate at a high speed, so that the physical interception of the waste gas is realized;
in step S3, the waste gas floats upward and meets the rotating filter disc rotating at a high speed, and the paint, the water vapor particles, the fibers, the sticky substances and the like in the waste gas are intercepted and then mixed with the upper water vapor to form floccules, which fall onto the first flow passage due to gravity and slide into the washing tower along the first flow passage.
Preferably, after step S6 and before step S7, step S65 is further included, in which each parameter of the exhaust gas flowing out of the gas outlet port is detected and uploaded to the display terminal; namely install detection system two at outlet port department, detection system two includes: the non-methane total hydrocarbon monitor, the dust detector and the temperature and humidity detector are in wireless signal connection with the display terminal through the wireless communication module; the non-methane total hydrocarbon monitor is used for judging whether the clean air meets the standard of safe emission or not according to the concentration value of the non-methane total hydrocarbon in the clean air at the air outlet port; the dust detector detects the dust concentration in the clean air in the air outlet; the temperature and humidity detector detects the temperature and humidity content of the clean air at the air outlet port; further, the non-methane total hydrocarbon monitor can be of an SNC4000-NMHC type, the structure and the model of the dust detector are consistent with those of a dust detector, and the temperature and humidity detector is of a TH40GE type.
Compared with the prior art, the invention has the beneficial effects that by adopting the scheme, dust particles and paint particles in the waste gas are firstly treated by the washing tower, the paint, water vapor particles, fibers, stickies and the like in the waste gas are physically intercepted by the dynamic shielding device, then the dust particles are adsorbed by the dust removal filter, and are periodically cleaned by the back-blowing cleaning device, the wind direction of the waste gas is changed by the flow channel II, then organic substances (benzene and non-methane total hydrocarbon) and peculiar smell are adsorbed by the activated carbon adsorption chamber, and finally the clean air is discharged into the atmosphere through the air outlet port and the discharging device, namely, the organic substances and peculiar smell such as gas, dust, particles and the like in the waste gas are effectively mixed, intercepted and adsorbed by the multistage treatment equipment, so that the purification effect and speed are improved; the output power of the exhaust fan is controlled to adjust the exhaust gas flow speed of the air inlet port, so that dust particles, paint particles and water vapor in the exhaust gas are mixed more fully, and the purification effect is improved; each component in the waste gas is respectively treated for many times through the multi-stage treatment equipment, the treatment waste gas amount of the activated carbon filter screen is correspondingly reduced, the activated carbon filter screen is prevented from being blocked, the replacement frequency of the activated carbon filter screen is reduced, and the cost is saved.
Drawings
For a clearer explanation of the embodiments or technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained from the drawings without creative efforts.
FIG. 1 is a logic diagram of the overall treatment process of the present invention;
FIG. 2 is a schematic view of the overall processing apparatus of the present invention;
FIG. 3 is a schematic view of the inlet port structure of the present invention;
FIG. 4 is a schematic diagram of a scrub column of the present invention;
FIG. 5 is a schematic diagram of a dynamic shielding device according to the present invention;
FIG. 6 is a second schematic diagram of the dynamic shielding device of the present invention;
FIG. 7 is a schematic view of a flow channel structure according to the present invention;
FIG. 8 is a schematic view of the dust removal filter of the present invention;
FIG. 9 is a schematic structural diagram of a back-blowing cleaning device according to the present invention;
FIG. 10 is a schematic view of the structure of the activated carbon adsorption chamber of the present invention;
as shown in the above legend: 1. the device comprises an air inlet port 11, an air inlet fixing part 12, an air inlet channel 13, an air outlet fixing part 2, a washing tower 21, a liquid spraying pipe group 22, a vertical collecting pipe 23, a sewage tank 24, a clean water tank 25, a liquid pumping pump 26, a primary filter component 3, a dynamic shielding device 31, a bracket 32, a rotary wheel bracket 33, an upper baffle plate 34, a driving motor 35, a rotary filter disc 36, a tension wheel 37, a driving wheel 38, a driven wheel 39, a mounting position 4, a flow channel I41, a flow channel 42, an extension plate 5, a dust removal filter 51, a filter element bearing plate 52, a dust removal filter element 53, a back flushing cleaning device 531, a collecting air pipe 532, an air inlet pipe 533, a branch air pipe 534, an air blowing pipe 535, an air pressure regulating valve 54, an air outlet 6, a flow channel II 7, an activated carbon adsorption chamber 71, a supporting seat 72, a filter screen bracket 8, Discharge device 9, air outlet port 10, box.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 2, the overall structure of the present invention is:
embodiment 1, an automatic waste gas treatment device suitable for a spray booth, an inlet end of the waste gas treatment device is connected and communicated with an outlet end of the spray booth, an exhaust fan installed at the outlet end of the spray booth blows waste gas into a waste treatment device, and the waste gas treatment device includes an inlet port 1 and a detachable shielding box 10; the washing tower 2, the dynamic shield 3, the dust removal filter 5 and the activated carbon adsorption chamber 7 are arranged in the box body 10 and are sequentially communicated end to end, the air outlet end of the spraying chamber is communicated with the air inlet end pipe of the washing tower 2 through an air inlet port 1 arranged at one side of the box body 10, and the air outlet end of the activated carbon adsorption chamber 7 is communicated with the air inlet end of the discharge device 8 through an air outlet port 9 arranged at the other side of the box body 10; the upper air outlet end of the washing tower 2 is communicated with the lower air inlet end of the dynamic shielding device 3 through a first flow passage 4, and the air outlet end of the dust removal filter 5 is communicated with the air inlet end of the activated carbon adsorption chamber 7 through a second flow passage 6.
Further, in order to maintain the useful life of the case 10, the case 10 may be provided in a stainless steel structure; in order to reduce occupied space and facilitate maintenance, the box body 10 is of an integrated structure; in order to facilitate later-stage workers to maintain and replace all parts of the waste gas treatment equipment, access doors are pre-opened at the positions, corresponding to the washing tower 2, the dynamic shielding device 3, the dust removal filter 5 and the activated carbon adsorption chamber 7, of the periphery of the box body 10, are in a closed state when the waste gas treatment equipment normally works, and can be manually opened when a fault occurs.
Embodiment 2, as shown in fig. 3, in addition to embodiment 1, the air inlet port 1 includes an air inlet fixing portion 11, an air inlet channel 12 and an air outlet fixing portion 13 that are integrally arranged and sequentially arranged from left to right, and the area of the longitudinal section of the air inlet channel 12 gradually increases from the air inlet fixing portion 11 to the air outlet fixing portion 13; the air outlet port 9 and the air inlet port 1 are in a bilateral symmetry structure; further, the air inlet port 1 is a middle pipeline communicated with the spraying chamber and the washing tower 2 in the waste gas treatment equipment, the caliber of the left end of the air inlet port 1 close to the spraying chamber is smaller than that of the washing tower 2, so that the flow speed of the waste gas in the waste gas treatment equipment is effectively reduced, the mixing time of water sprayed by the washing tower 2 and paint particles in the waste gas is correspondingly prolonged, and the purifying effect of the paint particles and dust particles in the waste gas is further improved; and the caliber of the end of the air outlet port 9 close to the discharging device 8 is smaller than the caliber of the end close to the activated carbon adsorption chamber 7, so that the outflow speed of the purified air is increased invisibly, the output load of the discharging device 8 is reduced indirectly, and the electric energy cost is saved.
Embodiment 3, on the basis of embodiment 2, a pinboard perpendicular to the flow direction of the exhaust gas is inserted into the air inlet channel 12 of the air inlet port 1, and the flow aperture of the exhaust gas in the air inlet port 1 is changed by the position of the pinboard inserted into the air inlet channel 12, thereby realizing manual flexible stepped control/adjustment of the flow rate of the exhaust gas entering the exhaust gas treatment device; the insertion plate is made of a silencing material, so that the noise generated by the blocking of the insertion plate in the air inlet port 1 of the waste gas can be reduced; the specific installation of plugboard: the plugboard comprises a plugboard, a support board, telescopic rods and fixing nuts, wherein a strip-shaped jack is formed in the upper part of an air inlet channel 12 of the air inlet port 1, the upper end of the plugboard is fixedly connected with the middle position of the lower part of the support board, the upper ends of the two telescopic rods are correspondingly and fixedly connected with the left side and the right side of the lower part of the support board, and the lower ends of the two telescopic rods are fixed on the upper part of the air inlet channel 12 through the two fixing nuts; further, the insertion plate may be inserted into the upper portion of the air intake passage 12, or may be inserted into the front and rear sides of the air intake passage 12.
Preferably, as shown in fig. 4, the washing tower 2 includes a liquid spraying pipe group 21, a primary filtering assembly 26 and a liquid storage tank, which are sequentially arranged from top to bottom, the primary filtering assembly 26 includes a plurality of filtering tank bodies arranged along the Y-axis direction, the lower parts of the filtering tank bodies are detachably mounted on a first supporting part inside the box body 10 through tank racks, and a plurality of PP hollow spheres are placed inside the filtering tank bodies; the liquid storage tank comprises a sewage tank 23, a clean water tank 24 and a sewage purification part, the sewage tank 23 is positioned under the primary filtering component 26, a liquid pump 25 is arranged outside the clean water tank 24, the liquid inlet end of the liquid pump 25 is communicated with a liquid inlet pipe penetrating into the clean water tank 24, the liquid outlet end of the liquid pump 25 is connected with the water inlet end pipe of the liquid spraying pipe group 21 through a vertical confluence pipe 22, and a sewage port formed at the lower end of the sewage tank 23 is communicated with a circulating liquid inlet on the side surface of the clean water tank 24 through the sewage purification part; the liquid spraying pipe group 21 comprises a plurality of liquid outlet pipes which are arranged in parallel, and a plurality of liquid spraying holes are formed in the upper part and the lower part of each liquid outlet pipe in a staggered and equidistant mode.
Further, when waste gas passes through scrubbing tower 2, drawing clear water and through converging in the clear water groove 24 and the 21 high-pressure blowout of collecting pipe and hydrojet nest of tubes of liquid pump 25 work, and then make granule and water intensive mixing in the waste gas, at this moment under the action of gravity, the macromolecular particle who mixes with water can drip to the filter-tank internal, with the large granule coating cloud granule clean processing in the air, the macromolecular particle flows through from between the internal PP clean shot of filter-tank, and then caught by the PP clean shot, with the impurity in the reduction sewage tank 23, and when supreme through the PP clean shot is followed to waste gas, granule in the waste gas also can be caught by the PP clean shot, thereby can reduce the particle content in the waste gas, and the purification performance is improved.
Further, the sewage purification part comprises a sewage pipe, a sewage purification tank, a clean water pipe, a clean water tank and a clean water pump, wherein two ends of the sewage pipe are respectively correspondingly connected with a sewage port of the sewage tank 23 and an inlet pipe of the sewage purification tank, an outlet of the sewage purification tank is connected with an inlet pipe of the clean water tank through the clean water pipe, and an outlet of the clean water tank is communicated with a circulating liquid inlet of the clean water tank 24 through the clean water pump; water purification process in the sewage tank 23 and the clean water tank 24: the sewage in the sewage tank 23 flows back to the clean water tank 24 through the sewage pipe, the sewage purification tank, the clean water pipe, the clean water tank and the clean water pump, so that the sewage is purified and reused, and the sewage treatment system is energy-saving and environment-friendly.
Embodiment 4, on the basis of embodiment 3, in order to further slow down the flow velocity of the exhaust gas, prolong the mixing time of the particles in the exhaust gas and the water, and improve the purification effect, a waterproof fan is further fixedly installed inside the box 10 on the upper portion of the liquid spraying pipe group 21, the motor fixing end of the waterproof fan is fixed at the top end inside the box 10 through a motor mounting rack, and a waterproof casing is sleeved outside the motor fixing end of the waterproof fan, and the fan blades of the waterproof fan face downward, so as to generate downward air pressure, thereby correspondingly slowing down the flow velocity of the exhaust gas.
Preferably, as shown in fig. 5 and 6, the dynamic shielding device 3 includes a bracket 31, a rotating wheel support 32, an upper baffle 33, a driving motor 34, a driving wheel 37 and a rotating filter disc 35, the periphery of the bracket 31 is detachably connected with a second supporting portion installed on the inner wall of the box 10, the upper baffle 33 is detachably and obliquely installed on the inner side of the top of the box 10 and located on the upper portion of the bracket 31, a fixed end of the driving motor 34 is installed on the upper portion of the lower end of the upper baffle 33, a working end of the driving motor 34 downwardly penetrates through the upper baffle 33 and then is fixedly connected with the center of the driving wheel 37, the upper portion of the bracket 31 is provided with a plurality of installation positions 39 arranged in an array manner, the rotating filter disc 35 is detachably installed on the installation positions 39 through a filter disc frame body, driven wheels 38 are installed in the middle portions of the plurality of filter disc frame bodies arranged along the X axis, wherein the upper ends of the rotating shafts are embedded in the centers of the driven wheels 38, the lower end of the reinforced rotating shaft penetrates through a vertical dustproof pipe integrally installed in the center of the filter disc frame body and then is fixedly connected with the center of the rotary filter disc 35; a plurality of rotatory wheel support 32 corresponding with the filter disc support body of bracket 31 upper portion fixed mounting, a pair of interval adjustable take-up pulley 36 of every rotatory wheel support 32 upper portion installation, action wheel 37 is connected with a plurality of follow driving wheels 38 and take-up pulley 36 through rotating the belt, driving motor 34 work drives action wheel 37 and rotates, and then through rotating belt and a plurality of follow driving wheels 38, drive a plurality of rotatory filter discs 35 high-speed rotatory of arranging along the X axle one row, and then realize the physics interception to waste gas.
Further, the rotary filter disc 35 is a purification mesh disc, and is used for intercepting steam particles, fibrous matters, sticky matters and the like by the materials, and throwing the intercepted floccules on the upper part of the flow channel I4 at a high speed in a rotating manner so as to collect the floccules by using a flow guide groove on the flow channel I4 and guide the floccules to the upper part of the filter tank body; the purification net disc comprises an upper fixing disc, radial support ribs and an outer rim, the upper fixing disc is welded and fixed with the lower end of the reinforcing rotating shaft, the periphery of the upper fixing disc is spot-welded with a sink groove formed in the inner circle of the outer rim through a plurality of radial support ribs, and the plurality of radial support ribs surround the outer periphery of the upper fixing disc at equal intervals; in order to effectively intercept water vapor particles, fibrous matters, sticky matters and the like in the waste gas and spin the intercepted matters at high speed on the upper part of the first flow channel 4, the longitudinal section of the radial support rib is in an inverted trapezoid shape; the upper part of the filter disc frame body is provided with an upper blocking part which is used for preventing the rotary filter disc 35 from throwing the blocked objects onto the upper baffle plate 33 and is inconvenient to clean, the upper blocking part is a hemisphere with a downward concave surface, a strip-shaped opening is formed between the top part and the lower part of the upper blocking part, when the filter disc frame body is installed, the strip-shaped opening of the upper blocking part penetrates through the reinforced rotating shaft, and the lower part of the upper blocking part is detachably connected with the upper part of the filter disc frame body through a buckle or a bolt nut, so that the upper blocking part can be maintained and cleaned regularly; the radial support ribs are made of stainless steel materials, and are corrosion-resistant and durable although the early investment cost is high.
Further, the tensioning wheel 36 comprises a rear adjusting wheel, a front fixed wheel, an upper fastening plate and a manual adjusting piece, wherein the upper end and the lower end of the front fixed wheel are correspondingly connected with the front end of the upper fastening plate and the upper part of the rotating wheel bracket 32 through shafts; the manual adjusting piece comprises a nut seat, a rotating screw, a moving seat and a reinforcing knob, the nut seat is fixed on the rotating wheel bracket 32 through a screw, one end of the rotating screw penetrates through a screw hole of the nut seat and then is fixedly connected with the reinforcing knob, the other end of the rotating screw is fixedly connected with the rear end of the moving seat, and the lower end of the rear adjusting wheel is embedded in a round hole in the upper part of the moving seat; when the tightness of the rotating belt needs to be adjusted, the rotating screw rod is rotated only by manually operating the reinforcing knob, so that the moving seat and the rear adjusting wheel are dragged to move back and forth along the waist-shaped through hole, and the tensioning adjustment of the rotating belt is realized.
Preferably, the upper parts of each driving wheel 37, each driven wheel 38 and each tension wheel 36 are respectively sleeved with a first dust sleeve, a second dust sleeve and a third dust sleeve which are matched; the three dustproof sleeves can effectively prevent moisture, particles and the like in the waste gas from entering the driving wheel 37, the driven wheel 38 and the tension wheel 36, so that the service life of the three dustproof sleeves is correspondingly prolonged.
Preferably, as shown in fig. 7, the first flow passage 4 is an inclined flow passage, wherein the height of the inclined flow passage gradually increases from the end close to the washing tower 2 to the end close to the dynamic shielding device 3; a plurality of groups of flow guide channels 41 corresponding to the plurality of filter tanks are preset at the upper part of the inclined flow channel, and each group of flow guide channels 41 comprises a plurality of flow guide grooves; the lower part of one end of the inclined flow channel close to the washing tower 2 can be also detachably provided with an extension plate 42 in an inclined state, the upper part of the extension plate 42 is also provided with an extension flow channel which is connected with the flow guide groove, paint particles, sticky matters and the like intercepted by the waste gas after the high-speed rotation interception of the dynamic shield 3 are combined with water vapor to form floccules which fall on the flow guide groove 41 of the inclined flow channel, and the floccules flow into the filter tank body after passing through the extension flow channel of the extension plate 42 along the flow guide groove.
Furthermore, an interlayer is arranged in the first flow channel 4, a plurality of clamping positions are preset in the interlayer, a refrigeration rod is placed in each clamping position, a plurality of cover plates corresponding to the clamping positions are placed at the bottom of the first flow channel 4, and therefore later maintenance taking and placing are facilitated, wherein the refrigeration rod can be any refrigeration rod which can reduce temperature in the prior art and is suitable for the technical scheme; when the waste gas passes through the first flow passage 4, due to the refrigerating effect of the refrigerating rod, particles such as paint, sticky matters, dust and the like in the waste gas are combined with the water vapor to become macromolecules so as to be retained on the upper part of the first flow passage 4, and then fall into the filter tank body along the flow guide channel 41; and the particles physically intercepted by the dynamic shielding device 3 are thrown onto the first flow channel 4, are condensed due to the refrigeration effect of the refrigeration rod and are mixed with other surrounding particles to form macromolecules, and finally slide down to the filtering groove body along the flow guide channel 41 and the extension plate 42.
Preferably, as shown in fig. 8, the dust removing filter 5 includes a filter element loading plate 51 and a plurality of dust removing filter elements 52, the plurality of dust removing filter elements 52 are arranged in an array and detachably mounted on the upper portion of the filter element loading plate 51, and the left side and the right side of the filter element loading plate 51 are detachably connected to a support portion three mounted on the inner wall of the box body 10; the plurality of dust removing filter elements 52 are arranged in an array and divided into a plurality of groups of dust removing filter elements 52 according to the X-axis arrangement; the filter element bearing plate 51 is provided with an air outlet 54 at a position corresponding to the lower part of each dust removal filter element 52.
Furthermore, the dust removal filter element 52 is matched with a nano film-coated filter material, so that the precision is high, the air permeability is good, dust with the particle size of more than 0.1 micron can be captured, the capturing efficiency is high, the air volume is large, and the waste gas treatment capacity is stronger; the exhaust gas enters the second flow passage 6 from the gas outlet 54 after being filtered by the dust removing filter element 52.
Preferably, as shown in fig. 9, a group of back-blowing cleaning devices 53 is detachably mounted on the lower portion of the filter element carrier plate 51 at a position corresponding to the lower portion of each group of dust removing filter elements 52; the back-blowing cleaning device 53 comprises a confluence air pipe 531, branch air pipes 533 and air blowing pipes 534, wherein one side of the confluence air pipe 531 is connected with an air outlet end pipe of an air storage tank outside the box body 10 through an air inlet pipe 532, the other side of the confluence air pipe 531 is connected with air inlet end pipes of the branch air pipes 533, the air outlet end of each branch air pipe 533 is correspondingly connected with the lower end pipe of the air blowing pipes 534 through a plurality of electromagnetic valves, the upper end of each air blowing pipe 534 extends into the dust removal filter element 52 from the air outlet 54, and an air pressure regulating valve 535 is arranged on the confluence air pipe 531; the back-blowing cleaning device 53 is used for periodically blowing and removing dust for the dust removal filter element 52, thereby prolonging the service life of the dust removal filter element 52 and reducing the replacement and maintenance frequency.
Preferably, the second flow passage 6 is a bent air duct, an upper air inlet end of the bent air duct is connected to a right air outlet end of the dust removal filter 5 in a bearing manner, and the right air outlet end of the bent air duct is communicated with a left air inlet end of the activated carbon adsorption chamber 7; furthermore, the bent air duct is any one of C-shaped, semicircular, side-standing arch and the like; because waste gas filters the back wind direction downwards through dust removal filter 5, gets into runner two 6 to in order to strengthen the filter effect of active carbon filter screen, with the vertical insertion of active carbon filter screen inside filter screen support 72, consequently set up runner two 6 into the bending type, thereby the effectual flow direction that changes waste gas.
Preferably, as shown in fig. 10, the activated carbon adsorption chamber 7 is used for adsorbing organic substances (benzene, non-methane total hydrocarbons) and odor in the exhaust gas; activated carbon adsorption chamber 7 is for controlling the multiunit filter screen spare of arranging, and every filter screen spare of group includes supporting seat 71, filter screen support 72 and activated carbon filter screen, filter screen support 72 passes through supporting seat 71 to be installed on the bottom plate of box 10, and the vertical insertion of activated carbon filter screen is inside filter screen support 72.
Further, exhaust apparatus 8 includes exhaust fan and exhaust pipe, the inlet end of exhaust fan with give vent to anger 9 union couplings of port, the lower extreme sealing tube who gives vent to anger end and exhaust pipe of exhaust fan is connected, the upper end of exhaust pipe is passed through elbow bend and is towards the right side, and the clean air after 7 filters through the active carbon adsorption chamber passes through the exhaust pipe through the work of exhaust fan and discharges into the atmosphere promptly.
As shown in fig. 1, the overall treatment process for the spray booth includes the following specific steps:
s0, controlling the flow rate of the waste gas entering the air inlet port; the exhaust fan is a speed-regulating fan, the output power of the exhaust fan can be manually or remotely controlled, and the flow rate of the waste gas entering the air inlet port is adjusted according to the actual condition;
s1, blowing the waste gas in the spraying chamber into the air inlet port by an exhaust fan; namely, the exhaust fan works to drive the waste gas at the air outlet end of the spraying chamber to flow so as to blow the waste gas to the air inlet port of the waste gas treatment equipment;
s15, detecting each parameter of the waste gas entering the air inlet port and uploading the parameters to a display terminal; the device comprises an air inlet port, a detection system, a display terminal and a control system, wherein the detection system is arranged on the air inlet port and comprises a combustible gas detector, a flow rate detector, a dust detector, a temperature detector and a humidity detector, and is in wireless signal connection with the display terminal through a wireless communication module; the display terminal is an electronic device which can display each parameter, such as a smart phone, a tablet computer, a smart watch, a background monitoring display and the like;
s2, the washing tower is used for treating and purifying dust particles and paint particles in the waste gas; namely, high-pressure water vapor sprayed by the washing tower is mixed with dust particles and paint particles to form macromolecules which automatically fall under the action of gravity; the specific steps of step S2 include:
s21, spraying water to the periphery by the liquid spraying pipe group at high pressure so as to form upper steam and lower steam at the periphery of the liquid spraying pipe group and the lower part of the filtering groove body respectively;
s22, enabling dust particles and paint particles in the waste gas to enter from the air inlet port, float upwards and be mixed with lower steam to form macromolecules, and enabling the macromolecules to fall into a sewage tank under the influence of gravity;
s23, enabling part of dust particles and paint particles which are not mixed with lower water vapor after the waste gas entering from the gas inlet port floats upwards to pass through the PP hollow sphere of the filtering tank body and then float upwards, mixing the dust particles and the paint particles with upper water vapor into macromolecules, descending by gravity, staying in the PP hollow sphere or vertically passing through the PP hollow sphere and then falling into a sewage tank, and accordingly completing the primary purification process of the dust particles and the paint particles in the waste gas;
s3, physically intercepting floccules in the waste gas by the dynamic shielding device; the waste gas floats upwards and meets a rotary filter disc rotating at a high speed, paint, water vapor particles, fiber matters, sticky matters and the like in the waste gas are intercepted by the rotary filter disc and then are mixed with upper water vapor to form floccules, and the floccules fall onto a first flow passage due to gravity and slide into a washing tower along the first flow passage;
s4, adsorbing dust in the waste gas by a dust removal filter; after the waste gas passes through the dust removal filter element of the dust removal filter, dust in the waste gas is adsorbed on the dust removal filter element, and purified air descends from an air outlet at the lower part of the dust removal filter and enters the second flow channel;
s5, changing the wind direction of the waste gas through a flow passage II on the lower side of the dust removal filter; the waste gas at the air outlet of the dust removal filter flows downwards, and the wind direction of the waste gas horizontally faces the right through the structure of the bent flow channel II, so that the vertical activated carbon filter screen is more favorable for adsorbing and removing organic substances and peculiar smell in the waste gas;
s6, adsorbing organic substances and peculiar smell in the waste gas by an activated carbon adsorption chamber;
s65, detecting each parameter of the waste gas flowing out from the air outlet port and uploading the parameters to the display terminal;
and S7, discharging the clean air at the air outlet into the atmosphere through a discharging device.
Preferably, in step S15: the combustible gas detector detects whether combustible and explosive gases and the concentration of the combustible and explosive gases are contained in the waste gas flowing in the air inlet port in real time, and transmits the detection result to the display terminal;
the flow rate detector detects the flow rate of the waste gas flowing in the air inlet port and transmits the flow rate value to the display terminal, so that a worker can control the flow rate of the waste gas according to the flow rate value of the waste gas; that is, the worker may control the flow rate of the exhaust gas according to the flow rate value of the exhaust gas, and may adopt step S0, where the plug board may be inserted at the upper portion or the front and rear sides of the intake port, so as to control the flow rate of the exhaust gas entering the intake port in a stepwise manner by the depth of the plug board inserted into the intake port; and a waterproof fan is fixedly arranged at the upper part of the liquid spraying pipe group, and the fan blades of the waterproof fan face downwards, so that the waste gas floating in the washing tower is blown, and the flow velocity of the waste gas in the washing tower is reduced.
The dust detector detects the concentration of dust in the waste gas flowing in the gas inlet port and transmits the concentration value of the dust to the display terminal, so that a worker can control the water spraying amount of the washing tower according to the concentration value of the dust in the waste gas; the output power of the liquid pump is remotely controlled by a worker according to the dust content in the waste gas, when the amount of the dust exceeds the set content, the output power of the liquid pump is remotely increased, and the water spraying amount of the liquid spraying pipe is processed, so that dust particles and paint particles are effectively treated; when the dust quantity is lower than the set content, the output power of the liquid pump is remotely reduced to reduce the water spraying amount of the liquid spraying pipe, so that the additional output of electric energy is saved on the basis of effectively processing dust particles and paint particles, and the electric energy cost is saved.
The temperature detector and the humidity detector detect the temperature and the humidity of the waste gas flowing in the air inlet and transmit the temperature and the humidity of the waste gas to the display terminal, so that a worker can reasonably adjust the temperature and the humidity of the waste gas according to the temperature and the humidity of the waste gas; when the display terminal displays that the height of the waste gas is higher than a set value, a refrigerating rod is arranged in a clear water tank of a reservoir, and then a liquid spraying pipe group sprays out clear water refrigerated by the refrigerating rod at high pressure to reduce the temperature of the waste gas, so that the mixing of water vapor, dust particles and paint particles is indirectly facilitated; when the humidity value is set to a high value, the drying of the dust removal filter element is kept by increasing the blowing of the back-blowing cleaning device to the dust removal filter element, so that the effect of reducing the humidity in the waste gas is achieved; and the humidity value of the waste gas can be further increased by increasing the number of the activated carbon filter screens and adsorbing partial moisture.
In step S15, whether combustible and explosive gas exists in the exhaust gas is displayed on the display terminal, if yes, an alarm message is sent out to prompt the staff to process in time, and the following information is displayed on the display terminal: "combustible and explosive gas concentration value"; if not, displaying that the display terminal has no inflammable and explosive gas; when flammable and explosive gases are displayed on the display terminal, workers need to search for the generation source of the flammable and explosive gases in time, and therefore the flammable and explosive gases are prevented from being exploded or not found in time when being touched by physical interception of a dynamic shielding device in the processing process and being discharged into the atmosphere to generate certain adverse effects.
The second detection system comprises: the non-methane total hydrocarbon monitor, the dust detector and the temperature and humidity detector are in wireless signal connection with the display terminal through the wireless communication module; the non-methane total hydrocarbon monitor is used for judging whether the clean air meets the standard of safe emission or not according to the concentration value of the non-methane total hydrocarbon in the clean air at the air outlet port; the dust detector detects the dust concentration in the clean air in the air outlet; and the temperature and humidity detector detects the temperature and humidity content of the clean air at the air outlet port.
Preferably, in step S3, the method further includes step S35, preventing the particles in the exhaust gas from being intercepted and thrown onto the inner wall of the box body; namely, the upper part of the filter disc frame body is provided with an upper blocking part which is used for preventing the rotary filter disc 35 from throwing the intercepted objects onto the upper baffle plate so as not to be convenient for cleaning, and the upper blocking part is a hemisphere with a downward concave surface.
Preferably, in step S65, to determine whether the clean air meets the standard for safe emission, if the concentration of non-methane hydrocarbons exceeds the standard for safe emission, a warning message is first sent by the display terminal, so that a worker can find out in time which link in the whole exhaust gas treatment device has a poor treatment and purification effect, and make a timely adjustment; the dust detector detects the concentration of dust in the clean air in the air outlet, and transmits the detection result to the display terminal, if the detection result does not meet the standard of safe emission, the processing capacities of the washing tower and the dust removal filter need to be increased; the temperature and humidity detector detects the temperature and humidity content of the clean air at the air outlet port and transmits the detected temperature and humidity value to the display terminal, so that a worker can find the reason of temperature and humidity abnormality in the clean air in time and process the temperature and humidity abnormality in time.
Further, in step S5, step S55 is further included, in which the second channel filters particles with a diameter smaller than 5 μm; the box-type filter is obliquely arranged in the second flow passage, so that particles with the diameter smaller than 5 micrometers in waste gas are filtered, the glass fiber filter paper of the box-type filter is made by folding through a micro-pleating technology, the ultra-large filtering area prolongs the online service life, the precision control of the filtering material is accurate, 99% of impurities below 5 micrometers in the waste gas can be removed, and a large amount of particles below 5 micrometers can be captured at the same time, so that the second flow passage not only can change the wind direction of the waste gas, but also can capture or filter the remaining impurities below 5 micrometers in the waste gas.
The spraying waste gas treatment principle is as follows: the exhaust fan introduces organic mixed waste gas to be treated in the spraying chamber into waste gas treatment equipment, the organic mixed waste gas firstly passes through the air inlet port, so that the flow speed of the waste gas is reduced, the mixing time of water in the washing tower, dust particles of the waste gas and paint particles is correspondingly prolonged, the waste gas is purified more thoroughly, the waste gas floats upwards and is physically intercepted by the dynamic shielding device, the intercepted paint, water vapor particles, fibers, sticky matters and the like are mixed with water vapor to form floccules which fall on the upper part of a flow channel under the action of gravity, the floccules slide into a filter tank body along the flow channel, the waste gas treated by the dynamic shielding device moves downwards, is dedusted by a dedusting filter, then enters an active carbon adsorption chamber through a flow channel II, organic substances and peculiar smell in the waste gas are effectively adsorbed by an active carbon filter screen, so that the gas is purified, the gas reaching the standard is discharged to the atmosphere through the discharging device after purification, that is, the multistage treatment equipment can effectively mix, intercept and adsorb organic substances such as gas, particles and the like in the waste gas, and the purification effect and the purification speed are improved.
The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An automatic waste gas treatment process suitable for a spraying chamber comprises waste gas treatment equipment, wherein the gas inlet end of the waste gas treatment equipment is connected with and communicated with the gas outlet end of the spraying chamber, and an exhaust fan arranged at the gas outlet end of the spraying chamber blows waste gas into the waste gas treatment equipment; further comprising the steps of:
s1, blowing the waste gas in the spraying chamber into the air inlet port by an exhaust fan;
s2, the washing tower is used for treating and purifying dust particles and paint particles in the waste gas;
s3, physically intercepting floccules in the waste gas by the dynamic shielding device;
the dynamic shielding device comprises a bracket, a rotating wheel support, an upper baffle, a driving motor, a driving wheel and a rotating filter disc, wherein the upper baffle is detachably and obliquely arranged on the inner side of the top of the box body and is positioned on the upper part of the bracket; a first flow channel is obliquely arranged between the washing tower and the dynamic shielding device, and the height of one end of the first flow channel, which is close to the dynamic shielding device, is higher than that of one end of the first flow channel, which is close to the washing tower; the driving motor works to drive the driving wheel to rotate, and then the belt and the driven wheels are rotated to drive a row of a plurality of rotary filter discs arranged along the X axis to rotate at a high speed, so that the physical interception of the waste gas is realized;
in the step S3, the waste gas floats upwards to meet a rotating filter disc rotating at a high speed, paint, water vapor particles, fibers and sticky matters in the waste gas are intercepted and then mixed with the upper water vapor to form floccules, the floccules fall onto the first flow channel due to gravity and slide into the washing tower along the first flow channel;
an interlayer is arranged in the first flow channel, a plurality of clamping positions are preset in the interlayer, a refrigerating rod is placed in each clamping position, and a plurality of cover plates corresponding to the clamping positions are arranged at the bottom of the first flow channel;
the rotary filter disc is a purification mesh disc, the purification mesh disc comprises an upper fixing disc, radial support ribs and an outer rim, the upper fixing disc is welded and fixed with the lower end of the reinforcing rotating shaft, the periphery of the upper fixing disc is spot-welded with a sink groove formed in the inner circle of the outer rim through a plurality of radial support ribs, and the plurality of radial support ribs surround the outer periphery of the upper fixing disc at equal intervals; the longitudinal section of the radial support rib is in an inverted trapezoid shape; the upper part of the filter disc frame body is provided with an upper blocking part, the upper blocking part is a hemisphere with a downward concave surface, a strip-shaped opening is formed between the top part and the lower part of the upper blocking part, and the lower part of the upper blocking part is detachably connected with the upper part of the filter disc frame body through a buckle or a bolt nut;
s4, adsorbing dust in the waste gas by a dust removal filter; the dust removal filter comprises a filter element bearing plate and a plurality of dust removal filter elements, the dust removal filter elements are arrayed in an array manner and are detachably mounted on the upper part of the filter element bearing plate, and the left side and the right side of the filter element bearing plate are detachably connected with a supporting part III mounted on the inner wall of the box body; the plurality of dust removal filter elements are arranged in an array form and are divided into a plurality of groups of dust removal filter elements according to the X-axis arrangement; the filter element bearing plate is provided with an air outlet at the position corresponding to the lower part of each dust removal filter element;
a group of back-blowing cleaning devices are detachably mounted at the corresponding positions below the lower part of the filter element bearing plate and each group of dust removal filter elements; the back-blowing cleaning device comprises a confluence air pipe, branch air pipes and air blowing pipes, wherein one side of the confluence air pipe is connected with an air outlet end pipe of an air storage tank outside the box body through an air inlet pipe, the other side of the confluence air pipe is connected with air inlet end pipes of the branch air pipes, the air outlet end of each branch air pipe is correspondingly connected with the lower end pipes of the air blowing pipes through a plurality of electromagnetic valves, the upper end of each air blowing pipe extends into the dust removal filter element from an air outlet, and an air pressure regulating valve is installed on the confluence air pipe;
s5, changing the wind direction of the waste gas through a flow passage II on the lower side of the dust removal filter;
in step S5, the method further includes step S55, filtering particles with a diameter less than 5 μm by using the second channel; the box type filter is obliquely arranged in the second flow passage, so that particles with the diameter less than 5 microns in the waste gas are filtered, wherein the glass fiber filter paper of the box type filter is made by folding by adopting a micro-pleating technology;
s6, adsorbing organic substances and peculiar smell in the waste gas by an activated carbon adsorption chamber;
and S7, discharging the clean air at the air outlet into the atmosphere through a discharging device.
2. The automatic processing technology of exhaust gas for spray booth according to claim 1, wherein before step S1, step S0 is further included, the flow rate of exhaust gas into the inlet port is controlled; the exhaust fan is a speed-regulating fan, the output power of the exhaust fan can be manually or remotely controlled, and the flow rate of the waste gas entering the air inlet port is adjusted according to actual conditions.
3. The automatic processing technology of exhaust gas for spray booth according to claim 1, wherein after step S1 and before step S2, step S15 is further included, wherein each parameter of exhaust gas entering the inlet port is detected and uploaded to the display terminal; the device comprises an air inlet port, a detection system, a display terminal and a control system, wherein the detection system is arranged on the air inlet port and comprises a combustible gas detector, a flow rate detector, a dust detector, a temperature detector and a humidity detector, and is in wireless signal connection with the display terminal through a wireless communication module; the display terminal is an electronic device which can display all parameters, such as a smart phone, a tablet personal computer, a smart watch and a background monitoring display.
4. The automatic exhaust gas treatment process for a spray booth according to claim 3, wherein in step S15: the combustible gas detector detects whether combustible and explosive gases and the concentration of the combustible and explosive gases are contained in the waste gas flowing in the air inlet port in real time, and transmits the detection result to the display terminal;
the flow rate detector detects the flow rate of the waste gas flowing in the air inlet port and transmits the flow rate value to the display terminal, so that a worker can control the flow rate of the waste gas according to the flow rate value of the waste gas;
the dust detector detects the concentration of dust in the waste gas flowing in the gas inlet port and transmits the concentration value of the dust to the display terminal, so that a worker can control the water spraying amount of the washing tower according to the concentration value of the dust in the waste gas;
temperature detector and humidity detector detect the temperature and humidity in the waste gas that flows in to the inlet port and transmit the temperature, the humidity value of waste gas for display terminal to the temperature and humidity of waste gas can be rationally adjusted according to the temperature, the humidity value in the waste gas to the staff.
5. The automatic waste gas treatment process applicable to the spray booth according to claim 4, wherein in step S15, whether combustible and explosive gas exists in the waste gas is displayed on a display terminal, if yes, an alarm message is sent to prompt a worker to timely treat the waste gas, and the display terminal displays: "combustible and explosive gas concentration value"; if not, displaying that the display terminal has no inflammable and explosive gas.
6. The automatic waste gas treatment process suitable for the spray booth as claimed in claim 1, wherein the scrubber comprises a spray pipe group, a primary filter assembly and a liquid storage tank, which are sequentially arranged from top to bottom, the primary filter assembly comprises a plurality of filter tank bodies arranged along the Y-axis direction, the lower parts of the filter tank bodies are detachably mounted on a first support part inside the cabinet body through tank racks, and a plurality of PP hollow spheres are placed inside the filter tank bodies; the liquid storage tank comprises a sewage tank, a clean water tank and a sewage purification part, and a sewage port formed at the lower end of the sewage tank is communicated with a circulating liquid inlet on the side surface of the clean water tank through the sewage purification part; the sewage tank is positioned under the primary filtering component, the liquid pump is arranged on the outer side of the clear water tank, the liquid inlet end of the liquid pump is communicated with the liquid inlet pipe penetrating into the clear water tank, the liquid outlet end of the liquid pump is connected with the water inlet end pipe of the liquid spraying pipe group through the vertical collecting pipe,
in step S2, the scrubber tower treats and purifies dust particles and paint particles in the exhaust gas: the method specifically comprises the step S21 of spraying water to the periphery by a liquid spraying pipe group at high pressure so as to form upper vapor and lower vapor at the periphery of the liquid spraying pipe group and at the lower part of a filtering groove body respectively;
s22, enabling dust particles and paint particles in the waste gas to enter from the air inlet port, float upwards and be mixed with lower steam to form macromolecules, and enabling the macromolecules to fall into a sewage tank under the influence of gravity;
and step S23, enabling part of dust particles and paint particles which are not mixed with lower water vapor after the waste gas entering from the air inlet port floats upwards to pass through the PP hollow sphere of the filtering tank body, floating upwards, mixing with upper water vapor to form macromolecules, descending by gravity, staying in the PP hollow sphere or vertically passing through the PP hollow sphere and then falling into a sewage tank, and accordingly completing the primary purification process of the dust particles and the paint particles in the waste gas.
7. The automatic processing technology of exhaust gas for spray booth according to claim 3, wherein after step S6 and before step S7, the automatic processing technology further comprises step S65, wherein each parameter of exhaust gas flowing out of the gas outlet port is detected and uploaded to a display terminal; namely install detection system two at outlet port department, detection system two includes: the non-methane total hydrocarbon monitor, the dust detector and the temperature and humidity detector are in wireless signal connection with the display terminal through the wireless communication module; the non-methane total hydrocarbon monitor is used for judging whether the clean air meets the standard of safe emission or not according to the concentration value of the non-methane total hydrocarbon in the clean air at the air outlet port; the dust detector detects the dust concentration in the clean air in the air outlet; and the temperature and humidity detector detects the temperature and humidity content of the clean air at the air outlet port.
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| CN111425865B (en) * | 2020-05-07 | 2022-03-11 | 山东群峰重工科技股份有限公司 | Efficient energy-saving device for garbage disposal |
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| CN113877339A (en) * | 2021-09-06 | 2022-01-04 | 冯慧倩 | Energy-saving waste gas purification equipment for automobile paint baking room |
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| CN117066015B (en) * | 2023-10-17 | 2023-12-22 | 青州豪格彩印包装有限公司 | High-viscosity adhesive tape production device and process |
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Effective date of registration: 20231026 Address after: Room 103, Building 2, No. 13, Daxing Road, Xiegang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Yongshengwang Intelligent Equipment Co.,Ltd. Address before: 518000 Factory Building No. 1, Nanyang Industrial Zone, Lougang Community, Songgang Street, Baoan District, Shenzhen City, Guangdong Province 105 Patentee before: Shenzhen Yongshengwang Machinery Equipment Co.,Ltd. |