A carbide slag clinker grinding device used in cement production process

Abstract

The present invention discloses a carbide slag clinker grinding device used in the cement production process, comprising a first equipment shell and a second equipment shell, wherein the second equipment shell is symmetrically arranged on both sides of the first equipment shell, and a transmission mechanism is arranged on the top of the first equipment shell, wherein the transmission mechanism comprises a back plate, a turntable, a rotating shaft, an eccentric column, a linkage plate, a limit groove, a hinge, an arc swing seat, a wheel frame and a steel pressure wheel. The carbide slag clinker grinding device used in the cement production process described in the present invention has a rotating shaft driving the turntable to perform uniform circular motion, thereby causing the arc swing seat to swing back and forth around the hinge, and several groups of steel pressure wheels at the bottom of the arc swing seat move in four groups of pressing grooves to contact and press the clinker, and this is repeated, thereby turning it into fine material, improving the efficiency of clinker grinding, and also enabling timely and continuous feeding, which is suitable for different working conditions and brings better prospects for use.

Description

Technical Field

[0001] The invention relates to the technical field of carbide slag treatment, and in particular to a carbide slag clinker grinding device used in a cement production process. Background Art

[0002] Carbide slag is the residue after the hydrolysis of calcium carbide, and its main component is Ca(OH)2. The accumulated amount of calcium carbide slag in my country has exceeded 100 million tons. Stacking it not only occupies a large amount of land, but also the water in the calcium carbide slag slurry penetrates into the groundwater, causing problems such as land alkalinization and water resource pollution. After being piled up for a long time and air-dried, calcium carbide slag is prone to dust when encountering wind, which poses a great threat to the surrounding environment.

[0003] The production of cement clinker is mainly composed of calcium corrective agent, silicon corrective agent, aluminum corrective agent and iron corrective agent. Usually, the calcium corrective agent is mainly limestone resource. The above raw materials are mixed and ground according to the ratio and then sent into the pre-decomposition kiln for preheating and decomposition. After that, they are sent into the rotary kiln for calcination to obtain cement clinker, which is then mixed and ground with the retarder to obtain the cement product.

[0004] Generally speaking, in the cement production process, the finer the powder of carbide slag clinker after grinding, the better its performance. However, the current grinding generally adopts the ball milling method, which is not efficient, the amount of material discharged each time is limited, and the dust generated during the grinding process cannot be handled in time. For this reason, we propose a carbide slag clinker grinding device for use in the cement production process. Summary of the invention

[0005] The main purpose of the present invention is to provide a carbide slag clinker grinding device used in the cement production process, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A carbide slag clinker grinding device used in a cement production process comprises a first equipment shell and a second equipment shell, wherein the second equipment shell is symmetrically arranged on both sides of the first equipment shell, and a transmission mechanism is arranged on the top of the first equipment shell, wherein the transmission mechanism comprises a back plate, a rotating disk, a rotating shaft, an eccentric column, a linkage plate, a limiting groove, a hinge part, an arc swing seat, a wheel frame and a steel pressure wheel, wherein the back plate is vertically fixedly installed inside the first equipment shell, the center of the rotating disk is sleeved on the rotating shaft, and the rotating shaft is fixed to the back plate through a bearing seat, and the back plate and The turntables are fitted together, and a block acting on the edge of the turntable is arranged on the back plate. The eccentric column is fixedly arranged on the side of the turntable. A limiting groove is provided on the linkage plate for the eccentric column to enter and move. A hinge is arranged between the lower end of the linkage plate and the back plate. The linkage plate moves around the hinge, and the lower end of the linkage plate is fixedly connected to an arc swing seat. Four groups of pressure wheel assemblies are equidistantly arranged on the arc surface of the lower end of the arc swing seat, and each group of the pressure wheel assemblies includes several groups of steel pressure wheels, and the steel pressure wheels are fixed by the wheel frame and the bottom of the arc swing seat.

[0008] Preferably, a material pressing platform is arranged inside the first equipment shell and below the transmission mechanism. The material pressing platform is arranged in an arc shape that matches the arc swing seat, with high sides and low middle.

[0009] Preferably, the pressing platform includes a pressing trough, a material guiding partition and sieve holes. The pressing troughs are four groups arranged at equal intervals. Material guiding partitions are arranged between adjacent pressing troughs. The material guiding partitions are triangular in shape. Several groups of sieve holes are evenly opened on the bottom surface of the pressing trough for screening the fine material of the low-chlorine clinker.

[0010] Preferably, a collecting hopper is provided at the bottom of the pressing platform, and a discharge port is provided at the lower end of the collecting hopper.

[0011] Preferably, a storage barrel is provided on the top of the two groups of the second equipment shell, a dust cover is hinged on the upper end of the storage barrel, four groups of discharge pipes are equidistantly provided on the bottom of the storage barrel, and a discharge valve is installed at the connection position of the discharge pipe and the storage barrel.

[0012] Preferably, an air supply tank is provided at the bottom of the two groups of the second equipment shells, and the No. 1 porous joint on the air supply tank is connected to four groups of first air blowing pipes, and the first air blowing pipes extend upward into the corresponding discharge pipes, and the first air blowing pipes blow along the discharge direction of the discharge pipes.

[0013] Preferably, the No. 2 porous joint on the air supply tank is connected to several groups of second air blowing pipes, and the second air blowing pipes extend upward into the first equipment shell. A dust collecting bag is provided on the inner wall of the first equipment shell, and the dust collecting bag is fixed by a bracket. The second air blowing pipes blow air upward toward the bottom of the dust collecting bag.

[0014] Preferably, the four groups of feed pipes are inclined downward, extend into the first equipment housing, and are located above the ends of the corresponding pressing grooves.

[0015] The present invention provides a carbide slag clinker grinding device used in cement production process through improvement, which has the following significant improvements and advantages compared with the prior art:

[0016] The first blowing pipe of the air supply tank is used to blow air into the lower material pipe, thereby accelerating the material discharge speed of the lower material pipe, preventing blockage, and also facilitating the clinker in the pressing trough to be combined from both sides to the middle.

[0017] The rotating shaft drives the turntable to make uniform circular motion, so that the arc swing seat swings back and forth around the hinge part. Several groups of steel pressing wheels at the bottom of the arc swing seat move in four groups of pressing grooves to contact and press the clinker. This process is repeated, turning it into fine material, improving the efficiency of clinker grinding, and enabling timely and continuous feeding.

[0018] The dust collecting bags are cleaned by the second air blowing pipe of the air supply tank. Most of the generated dust falls into the pressing trough at the bottom and then enters the collecting hopper to be collected as raw materials, reducing waste, and the dust collecting bags regain their adsorption capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure schematic diagram of a carbide slag clinker grinding device used in a cement production process of the present invention;

[0020] Figure 2 It is a specific structural diagram of the transmission mechanism of the present invention;

[0021] Figure 3 It is a partial enlarged view of the pressing table of the present invention;

[0022] Figure 4 FIG. 4 is an internal view of a second device housing of the present invention.

[0023] In the figure: 1. first equipment shell; 2. second equipment shell; 3. transmission mechanism; 4. back plate; 5. turntable; 6. rotating shaft; 7. eccentric column; 8. linkage plate; 9. limit groove; 10. hinge part; 11. arc swing seat; 12. wheel frame; 13. steel pressure wheel; 14. pressing table; 15. pressing trough; 16. material guide partition; 17. sieve hole; 18. collecting hopper; 19. discharge port; 20. storage barrel; 21. dust cover; 22. feeding pipe; 23. unloading valve; 24. air supply tank; 25. No. 1 porous joint; 26. first air blowing pipe; 27. No. 2 porous joint; 28. second air blowing pipe; 29. ​​dust collecting bag; 30. support seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0025] like Figure 1-4 As shown, this embodiment provides a carbide slag clinker grinding device used in a cement production process, comprising a first device housing 1 and a second device housing 2, the second device housing 2 being symmetrically arranged on both sides of the first device housing 1, a transmission mechanism 3 being arranged on the top of the first device housing 1, the transmission mechanism 3 comprising a back plate 4, a turntable 5, a rotating shaft 6, an eccentric column 7, a linkage plate 8, a limiting groove 9, a hinged portion 10, an arc swing seat 11, a wheel frame 12 and a steel pressure wheel 13, the back plate 4 is vertically fixedly installed inside the first device housing 1, the center of the turntable 5 is sleeved on the rotating shaft 6, and the rotating shaft 6 is fixed to the back plate through a bearing seat. 4, the back plate 4 and the turntable 5 are fitted together, the back plate 4 is provided with a block acting on the edge of the turntable 5, the eccentric column 7 is fixedly arranged at the side of the turntable 5, and a limiting groove 9 is provided on the linkage plate 8 for the eccentric column 7 to enter and move. A hinge 10 is provided between the lower end of the linkage plate 8 and the back plate 4, and the linkage plate 8 moves around the hinge 10. The lower end of the linkage plate 8 is fixedly connected with an arc swing seat 11, and four groups of pressure wheel assemblies are equidistantly arranged on the arc surface of the lower end of the arc swing seat 11, and each group of pressure wheel assemblies includes a plurality of groups of steel pressure wheels 13, and the steel pressure wheels 13 are fixed by the wheel frame 12 and the bottom of the arc swing seat 11.

[0026] In this embodiment, a material pressing platform 14 is arranged inside the first equipment housing 1 and below the transmission mechanism 3. The material pressing platform 14 is arranged in an arc shape that matches the arc swing seat 11, with high sides and a low middle.

[0027] Specifically, the pressing platform 14 includes a pressing trough 15 , a material guiding partition 16 and a sieve hole 17 .

[0028] In this embodiment, there are four groups of pressing grooves 15 that are equidistantly arranged. A material guide partition 16 is arranged between adjacent pressing grooves 15. The material guide partition 16 is triangular. A plurality of groups of sieve holes 17 are evenly opened on the bottom surface of the pressing groove 15 for screening the fine material of the low-chlorine clinker. The steel pressing wheel 13 extends into the pressing groove 15 to roll and press the material inside.

[0029] Furthermore, a collecting hopper 18 is provided at the bottom of the pressing platform 14 , and a discharge port 19 is provided at the lower end of the collecting hopper 18 .

[0030] Furthermore, a storage barrel 20 is provided on the top of the two groups of second equipment shells 2, a dust cover 21 is hinged on the upper end of the storage barrel 20, four groups of discharge pipes 22 are equidistantly provided on the bottom of the storage barrel 20, and a discharge valve 23 is installed at the connection position between the discharge pipe 22 and the storage barrel 20.

[0031] In this embodiment, an air supply tank 24 is provided at the bottom of the two groups of second equipment shells 2. The No. 1 porous joint 25 on the air supply tank 24 is connected to four groups of first air blowing pipes 26. The first air blowing pipes 26 extend upward into the corresponding discharge pipes 22. The first air blowing pipes 26 blow along the discharge direction of the discharge pipes 22.

[0032] In this embodiment, the second porous joint 27 on the gas supply tank 24 is connected to a plurality of groups of second air blowing pipes 28 , and the second air blowing pipes 28 extend upward into the first equipment housing 1 .

[0033] Furthermore, a dust collecting bag 29 is provided on the inner wall of the first equipment housing 1 , the dust collecting bag 29 is fixed by a bracket, and the second blowing pipe 28 blows air upward toward the bottom of the dust collecting bag 29 .

[0034] Furthermore, four groups of feed pipes 22 are inclined downward, extending into the first equipment housing 1 , and are located above the ends of the corresponding pressing grooves 15 .

[0035] Furthermore, a support 30 is symmetrically installed on the bottom of the first device housing 1.

[0036] When the present embodiment is in use, firstly, all eight groups of discharge valves 23 are opened to release the clinker in the storage barrel 20 into the discharge pipe 22, and at the same time, the first blowing pipe 26 of the air supply tank 24 is used to blow air into the discharge pipe 22, thereby accelerating the discharge speed of the discharge pipe 22 to prevent blockage, and then the clinker enters each pressing groove 15 respectively, and slowly gathers toward the middle, at this time, the uniform speed motor at the rotating shaft 6 is started to drive the rotating disk 5 to perform uniform circular motion, so that the circular arc swing seat 11 reciprocates around the hinge 10, and the plurality of groups of steel pressing wheels 13 at the bottom of the circular arc swing seat 11 are rotated in a uniform circular motion. The dust collector 29 moves in the pressing trough 15 (concentrated in the middle area of ​​the pressing trough 15) and contacts and presses the clinker, and this process is repeated, thereby turning it into fine material, which then falls from the sieve hole 17 at the bottom. With continuous feeding, the dust generated during the operation will move upward and slowly adhere to the dust collecting bag 29. When the accumulated amount becomes large, the dust collecting bag 29 is cleaned by the second air blowing pipe 28 of the air supply tank 24. Most of the generated dust falls into the pressing trough 15 at the bottom, and then enters the collecting hopper 18, where it is collected as raw material, and the dust collecting bag 29 regains its adsorption capacity.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbide slag clinker grinding device used in cement production process, characterized in that: The invention comprises a first device housing (1) and a second device housing (2), wherein the second device housing (2) is symmetrically arranged on both sides of the first device housing (1), and a transmission mechanism (3) is arranged on the top of the first device housing (1), wherein the transmission mechanism (3) comprises a back plate (4), a rotating disk (5), a rotating shaft (6), an eccentric column (7), a linkage plate (8), a limiting groove (9), a hinged portion (10), an arc swing seat (11), a wheel frame (12) and a steel pressure wheel (13), wherein the back plate (4) is vertically fixedly installed inside the first device housing (1), the center of the rotating disk (5) is sleeved on the rotating shaft (6), and the rotating shaft (6) is fixed on the back plate (4) through a bearing seat, The back plate (4) and the turntable (5) are fitted together, the eccentric column (7) is fixedly arranged at the side of the turntable (5), the linkage plate (8) is provided with a limiting groove (9) for the eccentric column (7) to enter and move, a hinge portion (10) is arranged between the lower end of the linkage plate (8) and the back plate (4), the linkage plate (8) moves around the hinge portion (10), the lower end of the linkage plate (8) is fixedly connected to an arc swing seat (11), four groups of pressure wheel assemblies are equidistantly arranged on the arc surface of the lower end of the arc swing seat (11), each group of the pressure wheel assembly includes a plurality of groups of steel pressure wheels (13), and the steel pressure wheels (13) are fixed through the wheel frame (12) and the bottom of the arc swing seat (11); A material pressing platform (14) is arranged inside the first equipment housing (1) and below the transmission mechanism (3); the material pressing platform (14) is arranged in an arc shape matching the arc swing seat (11), with high sides and low middle; The pressing platform (14) comprises a pressing trough (15), a material guide partition (16) and a sieve hole (17); the pressing trough (15) comprises four groups of equidistantly arranged material guide partitions (16); adjacent pressing troughs (15) are provided with material guide partitions (16); the material guide partitions (16) are triangular in shape; a plurality of groups of sieve holes (17) are evenly arranged on the bottom surface of the pressing trough (15) for screening and passing fine material of low-chlorine clinker; The bottom of the two groups of the second equipment shells (2) are both provided with an air supply tank (24), and the No. 1 multi-hole joint (25) on the air supply tank (24) is connected to four groups of first air blowing pipes (26), and the first air blowing pipes (26) extend upward into the corresponding material discharge pipes (22), and the first air blowing pipes (26) blow along the discharge direction of the material discharge pipes (22); The second porous joint (27) on the air supply tank (24) is connected to a plurality of groups of second air blowing pipes (28), and the second air blowing pipes (28) extend upward into the first device housing (1). A dust collecting bag (29) is provided on the inner wall of the first device housing (1), and the dust collecting bag (29) is fixed by a bracket. The second air blowing pipes (28) blow air upward toward the bottom of the dust collecting bag (29).

2. The carbide slag clinker grinding device used in cement production process according to claim 1, characterized in that: A material collecting hopper (18) is provided at the bottom of the material pressing platform (14), and a material discharge port (19) is provided at the lower end of the material collecting hopper (18).

3. The carbide slag clinker grinding device used in cement production process according to claim 1, characterized in that: A material storage barrel (20) is provided on the top of each of the two groups of the second equipment housing (2), a dust cover (21) is hingedly connected to the upper end of the material storage barrel (20), four groups of material discharge pipes (22) are equidistantly provided at the bottom of the material storage barrel (20), and a discharge valve (23) is installed at the connection position between the material discharge pipe (22) and the material storage barrel (20).

4. According to the device for grinding carbide slag clinker used in cement production process as described in claim 3, the four groups of feed pipes (22) are inclined downward, extend into the first equipment shell (1), and are located above the end of the corresponding pressure trough (15).

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