CN114700156B - System and process for preparing red brick slag powder for cement clinker - Google Patents

System and process for preparing red brick slag powder for cement clinker Download PDF

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Publication number
CN114700156B
CN114700156B CN202210182911.5A CN202210182911A CN114700156B CN 114700156 B CN114700156 B CN 114700156B CN 202210182911 A CN202210182911 A CN 202210182911A CN 114700156 B CN114700156 B CN 114700156B
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China
Prior art keywords
red brick
cement clinker
cylinder
slag powder
preparation system
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CN114700156A (en
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黄正宗
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Shenzhen Hezhicheng Environmental Protection Building Materials Co ltd
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Shenzhen Hezhicheng Environmental Protection Building Materials Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • 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
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B07B1/24—Revolving drums with fixed or moving interior agitators
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • C04B7/246—Cements from oil shales, residues or waste other than slag from waste building materials, e.g. waste asbestos-cement products, demolition waste
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The application relates to a red brick slag powder preparation system and a preparation process for cement clinker, belonging to the technical field of environment-friendly building material preparation. The red brick slag powder preparation system for the cement clinker comprises a feeding device, a crushing device connected with the discharge end of the feeding device, a grinding device connected with the discharge end of the crushing device and a receiving device connected with the discharge end of the grinding device; the crushing device comprises a jaw crusher and a circulating spraying mechanism arranged at the top of the jaw crusher; the circulating spraying mechanism comprises a gear pump and an annular spraying pipe; the feeding end of the gear pump is communicated with the bottom of the bin of the jaw crusher, and the annular spray pipe is communicated with the discharging end of the gear pump. The method has the advantages of high production automation degree, good product quality, environmental friendliness and the like.

Description

System and process for preparing red brick slag powder for cement clinker
Technical Field
The application relates to the technical field of environment-friendly building material preparation, in particular to a red brick slag powder preparation system and a preparation process for cement clinker.
Background
The cement clinker is prepared with limestone, clay and iron as main material and through compounding in proper proportion, burning to some or all melting, and cooling. In the cement industry, the most commonly used portland cement clinker has the main chemical components calcium oxide, silica and small amounts of alumina and iron oxide. And red brick powder with main components of aluminum oxide, ferric oxide and silicon dioxide is an ideal additive for manufacturing cement clinker.
At present, with the gradual development and perfection of the urban progress, a large number of old buildings based on red brick structures are dismantled, and a large amount of building waste containing waste red bricks is generated in the process. Recycling and preparing cement clinker additive from waste red bricks is an emerging technology. However, the red brick powder produced by a common crusher adopted for processing and recycling the waste red bricks in the industry is uneven in granularity and easy to mix with more impurities, so that the use requirement of the cement clinker additive is difficult to be met, a large amount of dust is generated in the processing process, and a certain environmental pollution problem is caused.
Against the background of the related art, the inventor finds that the existing crusher is used for recycling the waste red bricks, and the produced red brick powder has the defects of poor quality and easy generation of environmental pollution.
Disclosure of Invention
In order to process waste red bricks into cement clinker additives meeting the use requirements, the application provides a red brick slag powder preparation system and a preparation process for cement clinker.
In a first aspect, the present application provides a red brick slag powder preparation system for cement clinker, which adopts the following technical scheme:
the red brick slag powder preparation system for the cement clinker comprises a feeding device, a crushing device connected with the discharge end of the feeding device, a grinding device connected with the discharge end of the crushing device and a receiving device connected with the discharge end of the grinding device; the crushing device comprises a jaw crusher and a circulating spraying mechanism arranged at the top of the jaw crusher; the circulating spraying mechanism comprises a gear pump and an annular spraying pipe; the feeding end of the gear pump is communicated with the bottom of the bin of the jaw crusher, and the annular spray pipe is communicated with the discharging end of the gear pump.
Through adopting above-mentioned technical scheme, loading attachment is used for piling up the abandonment red brick that passes preliminary screening and concentrate in concentrating to carry out preliminary treatment to these raw and other materials, reduce the impurity content such as dregs wherein, and transport it to breaker, jaw breaker in the breaker can be broken into abandonment red brick fragment through the extruded mode with massive abandonment red brick, install the cyclic spray structure at jaw breaker top can be through spraying the annular water smoke safety cover of formation, can effectively avoid the dust smog that jaw breaker work produced to diffuse in to the atmosphere, alleviate the environmental protection problem that the recovery of abandonment red brick caused, the design of cyclic water supply significantly reduces the water consumption in the production process, the economic benefits of this application has further been promoted.
Optionally, the outer wall of the jaw crusher is provided with a strain gauge, and the strain gauge is electrically connected with a driving motor of the gear pump.
Through adopting above-mentioned technical scheme, jaw breaker outer wall installation's strain gauge can monitor jaw breaker's operating condition to carry out real-time control to the driving motor of gear pump according to jaw breaker's operating mode, thereby realize this application according to jaw breaker different operating condition regulation circulation spray mechanism's flow and the function of velocity of flow, make this application can make balance at energy-concerving and environment-protective and dust removal efficiency, in order to reach better result of use.
Optionally, the annular spray pipe is evenly provided with a plurality of flat head nozzles along the circumferential direction, and the flat head nozzles are hinged with the annular spray pipe.
Through adopting above-mentioned technical scheme, a plurality of flat head nozzles that evenly set up along circumference can make the rivers that jet form water smoke barrier, and the smog dust that reduces jaw breaker work production as far as in to the diffusion in the surrounding air, flat head nozzle and annular shower articulated structural design make the user adjust the injection angle of flat head nozzle according to jaw breaker's operating mode and actual conditions to reach better spraying dust removal's effect.
Optionally, the feeding device comprises a vibrating screen, a cylinder module and a hopper, wherein the cylinder module and the hopper are arranged at the discharge end of the vibrating screen; the feeding end of the vibrating screen is higher than the discharging end; the cylinder module comprises a first cylinder and a second cylinder, and the stroke of the first cylinder is larger than that of the second cylinder; the hopper is in butt joint with the telescopic end of the first cylinder, and the hopper is hinged with the telescopic end of the second cylinder.
Through adopting above-mentioned technical scheme, the shale shaker can sieve and edulcorate to the abandonment red brick of piling up on the sifting plane through the vibration, reduces the impurity content in the abandonment red brick, can transport the abandonment red brick to the hopper simultaneously in, the hopper has played the effect of accepting and transporting the abandonment red brick, installs the lift and the upset that can control the hopper at the cylinder module of hopper bottom to realize loading attachment's material loading and unloading function.
Optionally, saw-tooth protrusions are uniformly and densely distributed on the screen surface of the vibrating screen.
Through adopting above-mentioned technical scheme, the zigzag protrusion of even dense on the shale shaker screening surface can take place relative friction with the waste red brick surface when the vibration that the shale shaker produced transmits to the waste red brick on the screening surface and strike off impurity such as dregs on waste red brick surface and the mud piece that does not drop from waste red brick, has further promoted the screening efficiency of shale shaker, has improved the edulcoration effect of this application, has optimized the product quality of this application.
Optionally, the grinding device comprises a frame arranged on the ground, a speed reducing motor arranged on the frame, a rotating shaft connected with a power output shaft of the speed reducing motor, a double-layer screen drum fixedly sleeved on the rotating shaft and a shell arranged on the frame; the shell is sleeved on the outer side of the double-layer screen cylinder and is rotationally connected with the rotating shaft.
Through adopting above-mentioned technical scheme, grinding device's frame has played the effect of fixing and supporting to other each partial structures of grinding device, and gear motor who installs on the frame provides power for grinding device's rotation, and the pivot that links to each other with gear motor power take off shaft can drive double-deck screen drum and take place to rotate under gear motor's drive, and the double-deck screen drum takes place to rotate the back and can drive the grinding ball in the double-deck screen drum and the broken waste red brick fragment of extrusion together take place to rotate and produce relative friction to make the waste red brick fragment grind into powdery granule.
Optionally, spiral blades are symmetrically arranged on the part of the rotating shaft positioned on the inner side of the double-layer screen cylinder.
Through adopting above-mentioned technical scheme, the screw blade that the part that the pivot is located double-deck screen cylinder inboard set up can be along with the synchronous rotation of pivot, has played stirring and stirring's effect to the waste red brick fragment in the double-deck screen cylinder and grinding ball simultaneously, has further optimized grinder's grinding effect, has promoted the even degree of waste red brick powder granularity, has improved the product quality of this application.
Optionally, the material receiving device comprises a box body with the top end communicated with the discharge hole of the shell and a stirring shaft arranged in the box body; the stirring shaft is rotationally connected with the box body.
Through adopting above-mentioned technical scheme, the box that is linked together with the casing discharge gate has played the effect of accepting and collecting the waste red brick powder of output in the casing, and the (mixing) shaft of installation can take place to rotate under the drive of motor in the box, stirs the waste red brick powder of collecting in the box, has improved the even degree of product.
Optionally, the heating wires are densely wound on the outer surface of the stirring shaft.
Through adopting above-mentioned technical scheme, the densely wound heating wire of (mixing) shaft surface can be when the (mixing) shaft stirs the abandonment red brick powder in the box, heats it simultaneously, and the residual moisture in the stoving abandonment red brick powder is favorable to avoiding abandonment red brick powder to take place the phenomenon of caking.
In a second aspect, the present application provides a process for preparing red brick slag powder for cement clinker, which is applied to the above-mentioned system for preparing red brick slag powder for cement clinker, and adopts the following technical scheme:
step 1: preliminary screening and sorting are carried out on the waste red bricks in the construction waste, and the waste red bricks are intensively filled into the feeding end of the vibrating screen;
step 2: the electric heating wire is started to supply power and preheat, then the grinding device is started to supply power, and finally the crushing device is started to supply power;
step 3: adding a certain amount of clear water into the circulating spraying mechanism, supplying power to a driving motor for driving the gear pump, detecting whether water circulation is continuous or not, and adjusting the water injection quantity;
step 4: the vibrating screen is powered on, so that the preparation of the waste red brick powder can be started, and the waste red brick raw material is continuously added to the feeding end of the vibrating screen until the box body is full;
step 5: and collecting and transferring the red brick powder finished product in the box body.
Through adopting above-mentioned technical scheme, the order that power supply was opened to each partial equipment in step 2 is favorable to improving whole preparation system's production continuity, has avoided the material to appear piling up the condition of jam in a certain device department, has improved the production efficiency of this application, and the step design of firstly opening the power supply of heating wire and preheating in step 2 can make the heating wire can reach preset temperature value at work initial stage to the effect of heating wire to the heating stoving of abandonment red brick powder has been improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the feeding device is used for intensively stacking waste red bricks subjected to preliminary screening and centralization, preprocessing the raw materials, reducing the content of impurities such as slag soil and the like in the raw materials, conveying the raw materials to the crushing device, crushing the massive waste red bricks into waste red brick fragments by the jaw crusher in the crushing device in an extrusion mode, forming an annular water mist protection cover by spraying through a circulating spraying structure arranged at the top of the jaw crusher, effectively avoiding the diffusion of dust and smoke generated by the jaw crusher to the atmosphere, relieving the environmental protection problem caused by recycling the waste red bricks, greatly reducing the water consumption in the production process by the design of circulating water supply, and further improving the economic benefit of the application;
2. the strain gauge installed on the outer wall of the jaw crusher can monitor the working state of the jaw crusher and control the driving motor of the gear pump in real time according to the working condition of the jaw crusher, so that the function of adjusting the flow and the flow speed of the circulating spraying mechanism according to different working states of the jaw crusher is realized, and the energy-saving environment-friendly and dust-removing efficiency balance can be achieved, so that better use effect is achieved;
3. the frame of grinder has played the effect of fixing and supporting to other each partial structures of grinder in this application, and gear motor of installation provides power for grinder's rotation on the frame, and the pivot that links to each other with gear motor power take off shaft can drive double-deck screen drum and take place to rotate under gear motor's drive, and the double-deck screen drum takes place to rotate the back and can drive the grinding ball in the double-deck screen drum and the broken abandonment red brick fragment of process extrusion and take place to rotate and produce relative friction together to make the granule that the abandonment red brick fragment ground into powder.
Drawings
Fig. 1 is a schematic structural diagram of a red brick slag powder preparation system for cement clinker disclosed in the embodiment of the application.
Fig. 2 is a schematic cross-sectional view of a grinding device and a receiving device according to an embodiment of the present application.
Reference numerals illustrate: 1. a feeding device; 11. a vibrating screen; 12. a cylinder module; 13. a hopper; 121. a first cylinder; 122. a second cylinder; 2. a crushing device; 21. jaw crusher; 22. a circulating spraying mechanism; 23. a strain gauge; 221. a gear pump; 222. an annular spray pipe; 3. a grinding device; 31. a frame; 32. a speed reducing motor; 33. a rotating shaft; 34. a double-layer screen drum; 35. a housing; 4. a material receiving device; 41. a case; 42. a stirring shaft; 421. heating wire.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-2.
Because the similarity of the components composing the red brick and the components of the cement clinker additive is higher, the red brick powder can be used as a good substitute of the cement clinker additive. With the rapid development of the urban process, old buildings mainly comprising red bricks are removed in a large amount, and a large amount of building wastes containing waste red bricks are generated in the process. Therefore, the recycling and processing of the waste red bricks in the construction waste to prepare the cement clinker additive is an emerging environment-friendly technology with development prospect. However, since the waste red bricks in the construction waste are often accompanied by mud and clinker, the red brick powder obtained by processing and recycling the waste red bricks by using a conventional extrusion crushing production line is doped with more impurities, and the use requirement of the waste red bricks as cement clinker additives is difficult to meet. In addition, larger smoke dust is generated in the process of crushing the waste red bricks, which has a certain influence on the environment of the production place. In order to improve the product quality of the waste red brick recovery technology and reduce the environmental pollution in the production process, the application provides a red brick slag powder preparation system and a preparation process for cement clinker.
The embodiment of the application discloses a red brick slag powder preparation system for cement clinker. Referring to fig. 1 and 2, a red brick slag powder preparation system for cement clinker comprises a feeding device 1, a crushing device 2, a grinding device 3 and a receiving device 4. Wherein, the discharge end of loading attachment 1 communicates with the feed end of breaker 2, and the discharge end of breaker 2 communicates with the feed end of grinder 3, and the discharge end of grinder 3 communicates with the feed end of receiving device 4.
The feeding device 1 is used for primarily screening, removing impurities and conveying waste red bricks, the crushing device 2 can crush and crush the large waste red bricks into waste red brick fragments and convey the waste red brick fragments to the grinding device 3, the grinding device 3 can grind the waste red brick fragments into waste red brick powder, the prepared waste red brick powder is conveyed to the receiving device 4, and the receiving device 4 can collect, stir and dry the waste red brick powder to prepare a red brick powder finished product which can be used as a cement clinker additive.
Referring to fig. 1 and 2, the feeding device 1 includes a vibrating screen 11, a cylinder module 12, and a hopper 13. Wherein, the vibrating screen 11 and the cylinder module 12 are both installed on a supporting frame with adjustable height. The vibrating screen 11 can adopt a linear vibrating screen 11, the screen surface of the vibrating screen 11 is obliquely arranged, and the screen surface of the feeding end of the vibrating screen 11 is higher than the screen surface of the discharging end. Saw-tooth-shaped bulges are uniformly and densely distributed on the screen surface of the vibrating screen 11. The cylinder module 12 comprises a first cylinder 121 and a second cylinder 122, and the first cylinder 121 and the second cylinder 122 are both arranged on a supporting frame below the discharge end of the vibrating screen 11. The installation position of the first cylinder 121 is close to the vibrating screen 11, and the installation base of the first cylinder 121 is hinged with the supporting frame. The stroke in the vertical direction of the first cylinder 121 is greater than that of the second cylinder 122. The hopper 13 may be a hollow metal box with a trapezoid cross section and an open top, the telescopic end of the first cylinder 121 is abutted against the bottom of the hopper 13, and the telescopic end of the second cylinder 122 is hinged with the bottom of the hopper 13.
Referring to fig. 1, the crushing device 2 comprises a jaw crusher 21, a circulation spray mechanism 22 and a strain gauge 23. Wherein the jaw crusher 21 is mounted on a height-adjustable support frame, the circulation spray mechanism 22 is mounted on the top of the jaw crusher 21, and the strain gauge 23 is mounted on one side of the jaw crusher 21. Wherein, the feed inlet of the jaw crusher 21 is communicated with the hopper 13 through a section of inclined slideway, and the circulating spray mechanism 22 comprises a gear pump 221 arranged on one side of the jaw crusher 21 and an annular spray pipe 222 arranged on the top of the jaw crusher 21. The input end of the gear pump 221 is communicated with the bottom of the jaw crusher 21 through a hose, and the output end of the gear pump 221 is communicated with the annular spray pipe 222 through a hose. The annular spray pipe 222 is uniformly provided with a plurality of flat head nozzles along the circumferential direction, the flat head nozzles are hinged with the annular spray pipe 222 in a bolt connection mode, and the flat head nozzles can rotate along the axis of the connecting bolt, so that the functions of adjusting the spraying direction and the spraying range are realized. The strain gauge 23 monitors the pressure of the extruding plate of the jaw crusher 21 through the pressure strain gauge and converts the pressure into an electric signal, the strain gauge 23 is electrically connected with a driving motor for driving the gear pump 221 to operate, and the self-adjusting function of the flow velocity of the circulating spraying mechanism 22 is realized by judging according to the actual working condition of the jaw crusher 21 and controlling the rotating speed of the driving motor.
Referring to fig. 1 and 2, the grinding apparatus 3 includes a frame 31, a gear motor 32, a rotating shaft 33, a double-layer screen drum 34, and a housing 35. Wherein, frame 31 passes through rag bolt fixed mounting subaerial, and casing 35 passes through welding or bolted connection's mode to be installed on frame 31, and pivot 33 wears to establish on casing 35, and pivot 33 and casing 35 rotate to be connected. The gear motor 32 is mounted on the frame 31 by means of bolting and is located at one side of the housing 35. The double-layer screen drum 34 is fixedly sleeved on the rotating shaft 33 in a welding mode, and the rotating shaft 33 is connected with a power output shaft of the gear motor 32 through a coupler. The gear motor 32 can rotate through the driving rotating shaft 33 to drive the double-layer screen drum 34 to synchronously rotate. The portion of the rotary shaft 33 located inside the double screen drum 34 is provided with a plurality of spiral blades by means of welding. The inner layer and the outer layer of the double-layer screen cylinder 34 are respectively provided with a ball made of cast iron as a grinding ball, and the diameters of the grinding balls and the screen holes of the inner layer of the double-layer screen cylinder 34 are larger than those of the outer layer of the double-layer screen cylinder 34. The housing 35 may be a rectangular parallelepiped metal box having a bottom surface that is inclined and side and bottom surfaces open, the opening in the side of the housing 35 communicating with the discharge end of the jaw crusher 21 via an inclined chute.
Referring to fig. 1 and 2, the receiving device 4 includes a case 41 and a stirring shaft 42. The case 41 may be a rectangular parallelepiped metal case with an open top. The opening at the top end of the case 41 communicates with the opening on the bottom surface of the case 35. A stirring shaft 42 is arranged in the box 41 in a penetrating way, and the stirring shaft 42 is connected with the box 41 in a rotating way. The stirring shaft 42 is driven by a driving motor and rotates, so that the materials in the box 41 can be stirred. The stirring shaft 42 is provided with the heating wires 421 in a densely winding mode, and the heating wires 421 can heat and dry materials in the box 41 after being electrified.
The embodiment of the application discloses a red brick slag powder preparation system and a preparation process for cement clinker, wherein the preparation system comprises the following steps:
step 1: preliminary screening and sorting are carried out on the waste red bricks in the construction waste, and the waste red bricks are intensively filled into the feeding end of the vibrating screen 11;
in this step, care should be taken to avoid that the stacking height of the waste red bricks at the same position of the vibrating screen 11 is too high, and the metal garbage and the plastic garbage in the waste red bricks should be sorted, so that the waste red bricks are prevented from entering the crushing device 2 and the grinding device 3 to cause blockage.
Step 2: the electric heating wire 421 is powered on and preheated, the grinding device 3 is powered on, and finally the crushing device 2 is powered on;
in this step, the power supply sequence of each device should be noted to avoid material from entering the case 41 before the preheating of the heating wire 421 is completed or material blockage in each device.
Step 3: adding a certain amount of clear water into the circulating spray mechanism 22, supplying power to a driving motor for driving the gear pump 221, detecting whether water circulation is continuous or not, and adjusting the water injection quantity;
in this step, it should be noted that both ends of the connecting hose should be provided with a dense-eye metal filter screen to filter the clean water involved in spray dust removal, so as to avoid abrasion of the gear pump 221 caused by introducing waste red brick residues into the gear pump 221 during circulation of the clean water.
Step 4: the vibrating screen 11 is powered on, so that the preparation of the waste red brick powder can be started, and the waste red brick raw material is continuously added to the feeding end of the vibrating screen 11 until the box body 41 is full;
during this step, it is noted that a small number of additions are continued, and that the jaw crusher 21 is operated and the material in the hopper 13 is piled up, avoiding that material is piled up and slipped off the vibrating screen 11.
Step 5: the finished red brick powder in the box 41 is collected and transported.
In this step, it should be noted that the material at the bottom of the box 41 is collected and processed first, and the processing sequence is from bottom to top.
The foregoing is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (7)

1. A red brick slag powder preparation system for cement clinker is characterized in that: comprises a feeding device (1), a crushing device (2) connected with the discharge end of the feeding device (1), a grinding device (3) connected with the discharge end of the crushing device (2) and a receiving device (4) connected with the discharge end of the grinding device (3); the crushing device (2) comprises a jaw crusher (21) and a circulating spraying mechanism (22) arranged at the top of the jaw crusher (21); the circulating spray mechanism (22) comprises a gear pump (221) and an annular spray pipe (222); the feeding end of the gear pump (221) is communicated with the bottom of a bin of the jaw crusher (21), and the annular spraying pipe (222) is communicated with the discharging end of the gear pump (221); the feeding device (1) comprises a vibrating screen (11), a cylinder module (12) arranged at the discharge end of the vibrating screen (11) and a hopper (13); the feeding end of the vibrating screen (11) is higher than the discharging end; the cylinder module (12) comprises a first cylinder (121) and a second cylinder (122), and the stroke of the first cylinder (121) is larger than that of the second cylinder (122); the hopper (13) is abutted with the telescopic end of the first cylinder (121), and the hopper (13) is hinged with the telescopic end of the second cylinder (122); saw-tooth-shaped bulges are uniformly and densely distributed on the screen surface of the vibrating screen (11); the grinding device (3) comprises a frame (31) arranged on the ground, a gear motor (32) arranged on the frame (31), a rotating shaft (33) connected with a power output shaft of the gear motor (32), a double-layer screen drum (34) fixedly sleeved on the rotating shaft (33) and a shell (35) arranged on the frame (31); the shell (35) is sleeved on the outer side of the double-layer screen cylinder (34), and the shell (35) is rotationally connected with the rotating shaft (33).
2. The red brick slag powder preparation system for cement clinker according to claim 1, wherein: the outer wall of the jaw crusher (21) is provided with a strain gauge (23), and the strain gauge (23) is electrically connected with a driving motor of the gear pump (221).
3. The red brick slag powder preparation system for cement clinker according to claim 1, wherein: the annular spray pipe (222) is provided with a plurality of flat head nozzles uniformly along the circumferential direction, and the flat head nozzles are hinged with the annular spray pipe (222).
4. The red brick slag powder preparation system for cement clinker according to claim 1, wherein: spiral blades are symmetrically arranged on the part of the rotating shaft (33) positioned on the inner side of the double-layer screen cylinder (34).
5. The red brick slag powder preparation system for cement clinker according to claim 1, wherein: the material receiving device (4) comprises a box body (41) with the top end communicated with a discharge hole of the shell (35) and a stirring shaft (42) arranged in the box body (41); the stirring shaft (42) is rotatably connected with the box body (41).
6. The red brick slag powder preparation system for cement clinker according to claim 5, wherein: and the outer surface of the stirring shaft (42) is densely wound with heating wires (421).
7. A process for preparing red brick slag powder for cement clinker, using the red brick slag powder preparation system for cement clinker according to any one of claims 1 to 6, characterized by comprising the steps of:
step 1: preliminary screening and sorting are carried out on the waste red bricks in the construction waste, and the waste red bricks are intensively filled into the feeding end of the vibrating screen (11);
step 2: the electric heating wire (421) is powered on and preheated, then the grinding device (3) is powered on, and finally the crushing device (2) is powered on;
step 3: adding a certain amount of clear water into the circulating spraying mechanism (22), supplying power to a driving motor of the driving gear pump (221), detecting whether water circulation is continuous or not, and adjusting the water injection quantity;
step 4: the vibrating screen (11) is powered on, so that the preparation of the waste red brick powder can be started, and the waste red brick raw material is continuously added to the feeding end of the vibrating screen (11) until the box body (41) is full;
step 5: the red brick powder finished product in the box body (41) is collected and transported.
CN202210182911.5A 2022-02-26 2022-02-26 System and process for preparing red brick slag powder for cement clinker Active CN114700156B (en)

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CN113019585A (en) * 2021-01-28 2021-06-25 广东省大宝山矿业有限公司 Multistage integrated ball mill
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