CN217410982U

CN217410982U - Closed-circuit grinding device for cement clean production

Info

Publication number: CN217410982U
Application number: CN202221380592.0U
Authority: CN
Inventors: 宁江桥; 王石磊; 刘瑞
Original assignee: Xinji Gangxin New Building Materials Co ltd
Current assignee: Xinji Gangxin New Building Materials Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-13
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a closed circuit grinding device for cement cleaning production, which relates to the technical field of cement grinding and comprises a ball mill cylinder, a base for supporting the rotation of the cylinder, a recovery component with an upper opening, a dust absorption pipe communicated with the inner space of the recovery component, a fan with an air inlet connected with the dust absorption pipe and a dust collection component connected with the air outlet of the fan, wherein the recovery component is arranged on the base at the position right below the circular track of the rotation of a cylinder bin gate, and a gap is arranged between the upper opening of the recovery component and the cylinder; the recovery assembly comprises a recovery box and a plurality of rows of stop levers which are arranged in the recovery box in a staggered mode. This application has the raise dust that produces when reducing the change grinding ball, improves material utilization's effect.

Description

Closed-circuit grinding device for cement clean production

Technical Field

The application relates to the technical field of cement grinding, in particular to a closed circuit grinding device for clean production of cement.

Background

In the prior cement production, a ball mill is needed to grind a cement mixed material in a closed production line of a grinding process to obtain cement powder with qualified granularity, the cement material is filled into a barrel body from a hollow shaft at the feeding end of the ball mill, grinding balls are placed in the ball mill, when the barrel body of the ball mill rotates, the grinding balls are attached to a lining plate of the barrel body and taken away by the barrel body, when the barrel body is taken to a certain height, the grinding balls are thrown off under the action of gravity of the grinding balls, and the falling grinding balls smash the material in the barrel body.

The grinding balls wear after a period of use and need to be replaced. When the grinding balls are replaced, the bin door of the cylinder body needs to be opened, and the cylinder body is rotated to roll all the grinding balls out of the cylinder body.

In view of the above-mentioned related art, the inventor found that when the grinding balls are poured out of the barrel, the material residue and the dust in the barrel are poured out together, which generates heavy flying dust and pollutes the environment.

SUMMERY OF THE UTILITY MODEL

In order to reduce the raise dust produced when the grinding balls are replaced, improve the material utilization rate and reduce waste, the closed circuit grinding device for the clean production of cement is provided.

The closed circuit grinding device for the clean production of cement provided by the application adopts the following technical scheme:

a closed circuit grinding device for clean production of cement comprises a ball mill barrel, a base for supporting the rotation of the barrel, a recovery assembly with an upper opening, a dust suction pipe communicated with the inner space of the recovery assembly, a fan with an air inlet connected with the dust suction pipe and a dust collection assembly connected with the air outlet of the fan, wherein the recovery assembly is arranged on the base at a position right below a rotating circular track of a bin gate of the barrel, and a gap is formed between the upper opening of the recovery assembly and the barrel; the recovery assembly comprises a recovery box and a plurality of rows of stop levers which are arranged in the recovery box in a staggered mode.

Through adopting above-mentioned technical scheme, when the inside grinding ball is outwards emptyd to the ball mill barrel, the grinding ball, residue and dust all can fall into the collection box, grinding ball and residue falling speed are very fast, it can play certain collision and deceleration action to set up the pin, make on grinding ball and the residue adnexed dust be shaken down, the fan produces the negative pressure in the dust absorption pipe, inhale dust and a small amount of large granule residue in the collection box and send into dust collecting component and store, the air gets into from the collection box upper end, also can prevent the dust and spread outward to the collection box, the raise dust that produces when having effectively reduced the change grinding ball, make the clean environmental protection more of production process. The dust in the dust collecting component can be sent into the winnowing machine again for winnowing utilization, and the utilization rate of raw materials is improved.

Optionally, the recovery assembly further comprises a screen plate connected in the recovery box, and the screen plate is located below the stop lever.

Through adopting above-mentioned technical scheme, the sieve can block the grinding ball, and the large granule residue that will drop is sieved down to in the follow-up recovery to the residue is recycled, has improved the utilization ratio of raw and other materials.

Optionally, support plates are respectively connected to the lower portions of two opposite side walls in the recovery box, springs are connected between the sieve plates, and two ends of the sieve plate are connected to the support plates through the springs.

By adopting the technical scheme, when the grinding balls and the residues fall on the sieve plate, the up-and-down fluctuation of the sieve plate is larger, so that the sieving effect is better; the support plate is connected with the spring, and a gap is reserved between the support plate and the bottom of the recovery box, so that the bottom of the recovery box is convenient to clean.

Optionally, the lower end of the sieve plate is vertically connected with a guide post, and the lower end of the guide post penetrates through the support plate.

Through adopting above-mentioned technical scheme, the guide post can make the sieve shake in upper and lower direction only when the vibration, prevents that the sieve from turning on one's side or blocking's the condition to appear because of the striking produces.

Optionally, the bottom is equipped with the storage box in the collection box, and the extension board is supported respectively to the storage box both sides, and the collection box lateral wall is equipped with the groove of withdrawing the same with storage box cross-section size.

By adopting the technical scheme, the storage box can store the screened residues, and the storage box can be drawn out through the drawing groove to take out the residues; the supporting plates are abutted to the two sides of the storage box, so that the residues can be prevented from falling into a gap between the supporting plates and the bottom of the recovery box in the residue screening process.

Optionally, the inner wall of the recycling bin is symmetrically connected with two splitter plates, the splitter plates are located above the stop lever, a gap with the width smaller than the width of the bin gate is arranged between the two splitter plates, and the two ends of the two splitter plates are inclined downwards.

Through adopting above-mentioned technical scheme, the grinding ball that falls into the collection box, residue and dust can be shunted to three region by the flow distribution plate and fall down, and make full use of pin makes the even diffusion of dust that is shaken and falls, and the dust absorption pipe of being convenient for absorbs.

Optionally, a protective net is arranged at the communication position of the dust collection pipe and the recovery box.

Through adopting above-mentioned technical scheme, the protection network can prevent that the grinding ball from getting into in the dust absorption pipe, prevents that the grinding ball from damaging dust absorption pipe and fan.

Optionally, the dust collecting assembly includes a dust collecting tube connected to the air outlet of the fan and a dust collecting bag connected to the end of the dust collecting tube.

Through adopting above-mentioned technical scheme, the dust collecting pipe is used for connecting fan air outlet and dust bag, and the dust bag is collected dust and a small amount of residue, the subsequent reuse of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. dust and a small amount of large-particle residues are sucked and sent into the dust collecting assembly, so that the raised dust generated when the grinding balls are replaced is effectively reduced, and the production process is cleaner and more environment-friendly;

2. the dust in the dust collecting component can be sent into the winnowing machine again for winnowing utilization, so that the utilization rate of raw materials is improved;

3. the sieve plate can sieve the large-particle residues falling down, so that the residues can be recycled and reused subsequently, and the utilization rate of raw materials is improved;

4. the storage box can store the residue under the screen, and the storage box can be conveniently and quickly taken out to take out the residue through the taking-out groove.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic partial cross-sectional view of an embodiment of the present application;

FIG. 3 is an exploded view of a dust collection assembly in an embodiment of the present application;

in the figure, 1, a cylinder; 2. a base; 3. a recovery assembly; 31. a recycling bin; 32. a stop lever; 33. a sieve plate; 34. a support plate; 35. a spring; 36. a guide post; 37. a material storage box; 38. a flow distribution plate; 39. a protective net; 4. a dust collection pipe; 5. a fan; 6. a dust collection assembly; 61. a dust collecting pipe; 62. a dust collecting bag.

Detailed Description

The present application is described in further detail below with reference to fig. 1-3.

The application provides a closed circuit grinding device for cement clean production, which comprises a ball mill cylinder 1, a base 2, a recovery component 3, a dust suction pipe 4, a fan 5 and a dust collection component 6, and is shown in a figure 1 and a figure 2. The base 2 supports the barrel 1 and is rotationally connected with the barrel 1; the recovery component 3 is arranged as a box body with an upper opening, is arranged right below the circular track of the rotation of the bin gate of the barrel body 1, and is fixedly connected with the base 2; one end of the dust collection pipe 4 is communicated with the inner cavity of the recovery component 3, and the other end is connected with an air inlet of the fan 5; the air outlet of the fan 5 is connected with the dust collecting component 6 and supplies air into the dust collecting component 6; the dust collecting assembly 6 filters and stores dust entrained in the feed air.

The recovery assembly 3 comprises a recovery tank 31, a stop lever 32, a diversion plate 38, a sieve plate 33, a support plate 34, a spring 35, a guide post 36, a storage box 37 and a protective net 39.

The collection box 31 is the upper shed box, and the opening part is indent arc, and collection box 31 arc opening is coaxial with barrel 1 in this application embodiment, and the box width is the triple of 1 door opening width of barrel, guarantees that grinding ball, residue and dust in the barrel can not fall outside collection box 31.

The stop levers 32 are arranged in rows along the axial direction of the cylinder body 1 in the recycling box 31, all the stop levers 32 are parallel to each other, the stop levers 32 in two adjacent rows are uniformly arranged in a staggered mode, and the stop levers 32 in six rows are arranged in the embodiment of the application.

Two ends of the splitter plate 38 are respectively fixedly connected with the inner walls of the two sides of the recycling box 31 along the axial direction of the cylinder 1, and two splitter plates 38 are symmetrically arranged above the stop rod 32. Two adjacent ends of the two splitter plates 38 are both arc-shaped, and the gap between the two arc-shaped ends is smaller than the width of the bin gate of the barrel 1; the two diverging plates 38 are inclined downwardly at opposite ends to divide the grinding balls, residue and dust into three falling positions, one between the two arcuate ends of the plates 38 and the other between the other end of the plate 38 and the adjacent side wall. The stop lever 32 can be fully utilized by dividing the three falling positions, so that the dust shaken off by the stop lever 32 is uniformly diffused and is convenient to be absorbed by the dust absorption pipe 4.

The sieve 33 sets up in the bottom of collection box 31, evenly is equipped with the sieve mesh that is less than the ball diameter on the sieve 33, and the equal parallel extension board 34 that is equipped with in sieve 33 both sides below,

extension board

34 and 31 inner wall fixed connection of collection box are connected with a plurality of springs 35 between sieve 33 and the extension board 34, and sieve 33 both ends are passed through spring 35 and are connected on extension board 34. A plurality of guide columns 36 are respectively vertically connected on two sides of the bottom end of the sieve plate 33 opposite to the support plate 34, and the lower ends of the guide columns 36 penetrate through the support plate 34, so that the sieve plate 33 can be prevented from side turning over due to collision. When the grinding balls and the residues fall into the recycling bin 31, the sieve plate 33 vibrates up and down, and the residues with relatively small particle sizes are sieved below the sieve plate 33.

The side wall of one side of the recycling box 31, which deviates from the dust suction pipe 4, is provided with a material taking port, the material taking port is as wide as the inner wall of the recycling box 31, and a rectangular box door is arranged on the material taking port. One end of the box door is embedded into the material taking port and is flush with the inner wall of the recycling box 31; the other end is fixed on the outer wall of the recycling box 31 through an upper row of bolts and a lower row of bolts.

The storage box 37 is arranged at the bottom of the recycling box 31, two ends of the storage box are abutted to the support plate 34, a drawing groove with the same size as the section of the storage box 37 is arranged on one side wall of the recycling box 31 along the axial direction of the barrel 1, and the storage box 37 can be drawn out from the drawing groove. When storage box 37 is completely in collection box 31, the lateral wall that one end lateral wall and collection box 31 were equipped with the drawing groove flushes, can prevent that debris from falling out from drawing the groove in collection box 31, is equipped with the handle on collection box 31, and the operating personnel of being convenient for takes storage box 37 out.

The dust absorption pipe 4 is circular reducing pipe with 31 intercommunications departments of collection box in this application embodiment, and circular reducing pipe is bigger to dust absorption area, and the absorption effect is also better. A protective screen 39 is arranged at the communication part of the dust collection pipe 4 and the recovery box 31, and the protective screen 39 is used for preventing grinding balls from entering the dust collection pipe 4 and preventing the grinding balls from damaging the dust collection pipe 4 and the fan 5 after falling into the dust collection pipe 4. The end of the dust suction pipe 4 connected with the fan 5 is higher than the end connected with the recovery tank 31, so that part of the residue falling into the dust suction pipe 4 can be rolled back into the recovery tank 31.

In the embodiment of the present application, the fan 5 is installed on a working platform of the base 2, the air inlet is connected with the dust collection pipe 4 towards the recycling box 31, and the air outlet is connected with the dust collection assembly 6 towards the axial direction of the cylinder 1.

Referring to fig. 1 and 3, the dust collection assembly 6 includes a dust collection tube 61 and a dust collection bag 62, wherein one end of the dust collection tube 61 is connected to the air outlet of the fan 5, and the other end is bent downward to connect the dust collection bag 62. The end part of the end bent downwards is provided with a circle of flange, the mouth of the dust collection bag 62 is covered above the flange, the throat hoop is used for fixing the mouth of the dust collection bag 62, and the flange can prevent the dust collection bag 62 and the throat hoop from sliding downwards.

The implementation principle of the embodiment of the application is as follows: when the grinding ball needs to be replaced, the sealing plate of the bin gate of the barrel body 1 is detached firstly, the fan 5 is started, the barrel body 1 is rotated to enable the bin gate to rotate downwards to be opposite to the opening of the recovery box 31, the grinding ball, the residues and the dust in the barrel body 1 can fall into the recovery box 31, and the grinding ball, the residues and the dust flow into the recovery box 31 after being shunted by the shunting plate 38.

The grinding balls and the residues fall down to impact the stop lever 32, the dust attached to the surface is shaken off, and the shaken off dust and the dust mixed in the air are sucked into the dust suction pipe 4 together and finally sent into the dust collection bag 62 through the fan 5. The grinding balls fall above the sieve plate 33, the sieve plate 33 is vibrated up and down by being impacted on the sieve plate 33, and the residues are sieved into a storage box 37 below by the sieve plate 33 to be stored.

After the grinding balls in the cylinder 1 are completely poured out, and the sieve plate 33 stops vibrating, the fan 5 is closed, the box door of the recovery box 31 is opened, and the replaced grinding balls are taken out; the storage box 37 is drawn out, and residues and a small amount of cement dust in the storage box are taken out and recycled; the hose clamp is loosened, the dust collection bag 62 is detached, and the cement dust in the dust collection bag 62 is recycled. And new grinding balls are filled into the cylinder body 1 again to finish the replacement of the grinding balls.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A closed circuit grinding device for clean production of cement is characterized by comprising a ball mill cylinder (1), a base (2) for supporting the rotation of the cylinder (1), a recovery component (3) with an upper opening, a dust suction pipe (4) communicated with the inner space of the recovery component (3), a fan (5) with an air inlet connected with the dust suction pipe (4) and a dust collection component (6) connected with an air outlet of the fan (5), wherein the recovery component (3) is arranged on the base (2) at a position right below a circular track of rotation of a bin gate of the cylinder (1), and a gap is formed between the upper opening of the recovery component (3) and the cylinder (1); the recovery assembly (3) comprises a recovery box (31) and a plurality of rows of stop rods (32) which are arranged in the recovery box (31) in a staggered mode.

2. A closed circuit grinding device for cement clean production according to claim 1, characterized in that the recovery unit (3) further comprises a screen plate (33) connected in the recovery tank (31), the screen plate (33) is located under the stop lever (32).

3. The closed circuit grinding device for the clean production of cement as claimed in claim 2, characterized in that the lower parts of two opposite side walls in the recovery box (31) are respectively connected with a support plate (34), a spring (35) is connected between the sieve plate (33) and the support plate (34), and two ends of the sieve plate (33) are connected to the support plate through the spring.

4. The closed circuit grinding device for the clean production of cement as claimed in claim 3, characterized in that the lower end of the sieve plate (33) is vertically connected with a guide post (36), and the lower end of the guide post (36) passes through the support plate (34).

5. The closed circuit grinding device for the clean production of cement according to claim 4, characterized in that a storage box (37) is arranged at the bottom in the recycling box (31), two sides of the storage box (37) are respectively abutted against the support plate (34), and a drawing groove with the same size as the section of the storage box (37) is arranged on the side wall of the recycling box (31).

6. The closed circuit grinding device for the clean production of cement according to claim 1, characterized in that two splitter plates (38) are symmetrically connected to the inner wall of the recovery box (31), the splitter plates (38) are located above the stop lever (32), a gap with a width smaller than the width of the bin gate is arranged between the two splitter plates (38), and two ends which are deviated from each other are inclined downwards.

7. The closed circuit grinding device for the clean production of cement according to claim 1, characterized in that a protective net (39) is arranged at the communication part of the dust suction pipe (4) and the recovery tank (31).

8. The closed circuit grinding device for the clean production of cement according to claim 1, characterized in that the dust collection assembly (6) comprises a dust collection pipe (61) connected with the air outlet of the fan (5) and a dust collection bag (62) connected with the end of the dust collection pipe (61).