A dry pressurized crushing device

Abstract

The present invention relates to a dry-type booster crushing device, comprising: a crushing box rotating component, which is rotatably arranged in the crushing box; a booster component, which is arranged in the rotating component, the booster component includes an air outlet, and the air outlet can be connected to the cavity of the crushing box. The booster component moves in the rotating component to disconnect or connect the air outlet with the cavity of the crushing box. In the present invention, the gas in the booster component flows into the crushing box through the air outlet, and the gas enters the gap between the second grinding disc and the grinding component from bottom to top. The places where materials accumulate and block in the gap can be combed by the gas, and the materials accumulated in the gap can be blown up and transported upward for re-grinding and crushing, thereby improving the crushing efficiency and the crushing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of pulverizing devices, and in particular to a dry-type pressurized pulverizing device. Background Art

[0002] The crushing device plays a very important role in the calcium carbonate production process. In the prior art, when the particle size of the crushed particles is large, they are easily stuck in the gap between the grinding disc and the grinding table. When the calcium carbonate particles cannot go down and become blocked, there will be intermittent empty grinding in the gap between the grinding disc and the grinding table, resulting in low crushing efficiency and affecting production results. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a dry pressurized pulverizing device, and the specific technical solution is as follows:

[0004] A dry pressurized pulverizing device, comprising:

[0005] Crushing box

[0006] A rotating assembly, rotatably disposed on the crushing box;

[0007] A booster assembly is disposed in the rotating assembly, the booster assembly includes an air outlet hole, the air outlet hole can be connected to the cavity of the crushing box, and the booster assembly moves in the rotating assembly along the axial direction to disconnect or connect the air outlet hole with the cavity of the crushing box;

[0008] The pulverizing mechanism is arranged in the pulverizing box, and the pulverizing mechanism comprises a grinding assembly arranged on the inner wall of the pulverizing box, and a grinding disc 2 matched with the grinding assembly is arranged on the surface of the rotating assembly.

[0009] During the crushing process, when the air pressure inside the booster assembly reaches the set range, the air outlet moves out of the rotating assembly, so that the gas in the booster assembly flows into the crushing box through the air outlet. The gas enters the gap between the second grinding disc and the grinding assembly from bottom to top, and the gas can comb out the places where the materials in the gap are blocked, and at the same time, the materials accumulated in the gap are blown up and transported upward for further grinding and crushing.

[0010] As an improvement of the above technical solution, the rotating assembly includes a rotating shaft rotatably arranged on the crushing box and a driving member arranged on the surface of the rotating shaft.

[0011] As an improvement of the above technical solution, the grinding assembly includes a grinding table 2 arranged above the grinding disc 2 and a grinding piece arranged below the grinding disc 2, the grinding piece includes a grinding table 1 arranged below the grinding disc 2, and the distance between the grinding disc 2 and the grinding table 2 is greater than the distance between the grinding disc 2 and the grinding table 1.

[0012] The material first passes through the gap between the second grinding disc and the second grinding table to achieve primary crushing, and then enters the gap between the second grinding disc and the first grinding table to achieve secondary crushing, thereby improving the crushing efficiency and crushing effect, and the crushing gap gradually decreases, which is convenient for subsequent continuous crushing work.

[0013] As an improvement of the above technical solution, the grinding disc 2 includes an upper half of the grinding disc 2 and a lower half of the grinding disc 2. The diameter of the upper half of the grinding disc 2 gradually increases from top to bottom, and the diameter of the lower half of the grinding disc 2 gradually decreases from top to bottom. The surface of the upper half of the grinding disc 2 is provided with multiple groups of guide vanes.

[0014] As an improvement of the above technical solution, the grinding piece also includes a feed pipe arranged at the bottom of the grinding table, and a guide block is arranged on the inner wall of the feed pipe.

[0015] As an improvement of the above technical solution, the boost assembly includes an outlet pipe arranged in the rotating shaft, the bottom of the outlet pipe passes through the rotating shaft and extends to the outside of the rotating shaft, the outlet hole is opened on the surface of the outlet pipe and close to one end of the bottom, the top of the outlet pipe is rotatably connected with an inlet pipe, and a spring is wound on the surface of the inlet pipe and located between the top of the outlet pipe and the top of the inner wall of the rotating shaft.

[0016] When the gas pressure inside the outlet pipe is greater than the elastic force of the spring, the outlet pipe moves downward, stretching the spring, so that the outlet hole on the outlet pipe moves out of the rotating shaft, and the gas flows out from the outlet hole into the cavity of the crushing box. When the elastic force of the spring is greater than the air pressure inside the outlet pipe, the spring drives the outlet pipe to move upward, so that the outlet hole on the outlet pipe moves into the rotating shaft. By adjusting the air intake speed of the intake pipe, the time required for the air outlet hole to move out of the rotating shaft is adjusted, thereby allowing intermittent air intake and pressurization inside the crushing box.

[0017] As an improvement of the above technical solution, the air outlet pipe extends to one end outside the rotating shaft and is fixedly provided with a sealing block adapted to the guide block. The sealing block includes an upper half of the sealing block and a lower half of the sealing block. The diameter of the upper half of the sealing block gradually increases from top to bottom, and the diameter of the lower half of the sealing block gradually decreases from top to bottom.

[0018] As an improvement of the above technical solution, a crushing barrel is provided below the discharge pipe, a grinding disc is rotatably connected inside the crushing barrel, a fixed shaft is fixed in the middle of the grinding disc, one end of the fixed shaft passes through the crushing barrel and extends to the outside of the crushing barrel, and a motor is provided at the end of the fixed shaft extending to the outside of the crushing barrel.

[0019] As an improvement of the above technical solution, the distance between the grinding disc 1 and the crushing cylinder is smaller than the distance between the grinding disc 2 and the grinding table 1.

[0020] As an improvement of the above technical solution, a plurality of groups of crushing knives are arranged on the surface of the rotating shaft and above the grinding mechanism.

[0021] Beneficial effects of the present invention:

[0022] In the utility model, the gas in the booster component flows into the crushing box through the air outlet, and the gas enters the gap between the second grinding disc and the grinding component from bottom to top, so that the places where the materials in the gap are blocked can be combed out by the gas, and the materials accumulated in the gap can be blown up and transported upward for re-grinding and crushing, thereby improving the crushing efficiency and the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of the air inlet in the present invention in an open state;

[0026] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 5 It is a top view of the grinding disc 2 of the present invention.

[0028] Figure numerals: 1, crushing box; 11, grinding part; 111, feed pipe; 112, grinding table one; 113, guide block; 12, grinding table two; 13, grinding disc one; 14, crushing cylinder; 2, driving part; 3, spring; 4, rotating shaft; 41, grinding disc two; 411, guide plate; 42, crushing knife; 5, exhaust pipe; 51, exhaust hole; 52, sealing block; 6, intake pipe. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] A dry-type pressurized pulverizing device comprises: a pulverizing box 1; a rotating component rotatably arranged in the pulverizing box 1; a pressurizing component arranged in the rotating component, the pressurizing component comprising an air outlet 51, the air outlet 51 being connectable to the cavity of the pulverizing box 1, the pressurizing component moving in an axial direction in the rotating component so that the air outlet 51 is disconnected from or connected to the cavity of the pulverizing box 1; a pulverizing mechanism arranged in the pulverizing box 1, the pulverizing mechanism comprising a grinding component arranged on the inner wall of the pulverizing box 1, the surface of the rotating component being provided with a grinding disc 41 adapted to the grinding component.

[0031] The material to be crushed is poured into the crushing box 1 through the feed hopper. When crushing is required, the rotating component is started, and the rotating component drives the grinding disc 2 41 to rotate, so that the grinding disc 2 41 and the grinding component rotate relative to each other, thereby grinding and crushing the material entering the gap between the grinding disc 2 41 and the grinding component. During the crushing process, when the air pressure inside the boost component reaches within the set range, the air outlet 51 moves out of the rotating component, so that the gas in the boost component flows into the crushing box 1 through the air outlet, and the gas enters the gap between the grinding disc 2 41 and the grinding component from bottom to top, and the places where the material accumulates and is blocked in the gap can be combed by the gas, and the material accumulated in the gap can be blown up and transported upward for re-grinding and crushing. When the air pressure inside the boost component does not reach the set range, the air outlet 51 moves into the rotating component, so that the air outlet can intermittently discharge air, thereby intermittently combing the gap during the crushing process to meet the processing needs.

[0032] In one embodiment, the rotating assembly includes a rotating shaft 4 rotatably disposed on the crushing box 1 and a driving member 2 disposed on the surface of the rotating shaft 4 .

[0033] Specifically, the driving member 2 drives the rotating shaft 4 to rotate. The driving member 2 includes a driven wheel fixedly sleeved on the rotating shaft 4 and a motor 2 arranged on the crushing box 1. The output shaft of the motor 2 is fixedly sleeved with a driving wheel, and the driving wheel is meshingly connected with the driven wheel. The motor 2 rotates through the driving wheel, and the driving wheel drives the driven wheel to rotate through the meshing action, and the driven wheel drives the rotating shaft 4 to rotate.

[0034] In order to ensure sufficient grinding, the grinding assembly includes a grinding table 12 arranged above the grinding disc 41 and a grinding piece 11 arranged below the grinding disc 41. The grinding piece 11 includes a grinding table 112 arranged below the grinding disc 41. The distance between the grinding disc 41 and the grinding table 12 is greater than the distance between the grinding disc 41 and the grinding table 112. The material first passes through the gap between the grinding disc 41 and the grinding table 12 to achieve primary crushing, and then enters the gap between the grinding disc 41 and the grinding table 112 to achieve secondary crushing, thereby improving the crushing efficiency and crushing effect, and the crushing gap gradually decreases, which is convenient for subsequent continuous crushing work.

[0035] In one embodiment, the grinding disc 2 41 includes an upper part of the grinding disc 2 and a lower part of the grinding disc 2. The diameter of the upper part of the grinding disc 2 gradually increases from top to bottom, and the diameter of the lower part of the grinding disc 2 gradually decreases from top to bottom. The surface of the upper part of the grinding disc 2 is provided with multiple groups of guide plates 411. The upper part of the grinding disc 2 cooperates with the lower surface of the grinding table 2 12 to perform primary crushing of the material. The lower part of the grinding disc 2 cooperates with the upper surface of the grinding table 1 112 to achieve secondary crushing. Through the cooperation of the upper part of the grinding disc 2 and the lower part of the grinding disc 2, the material can be guided downward during the crushing process. The material is gradually transported downward in the crushing box 1. When the airflow from the air outlet flows into the cavity of the crushing box 1, the airflow flows along the gap between the lower half of the second grinding disc and the first grinding table 112 to the gap between the upper half of the second grinding disc and the second grinding table 12. When the airflow enters the gap between the upper half of the second grinding disc and the second grinding table 12, a spiral airflow is generated under the action of the guide plate 411. The spiral airflow pushes the material upward, causing the materials to collide with each other, especially between block materials, effectively preventing the materials from agglomerating into blocks before crushing and failing to enter the gap between the upper half of the second grinding disc and the second grinding table 12 for crushing.

[0036] In one embodiment, the grinding member also includes a feed pipe 111 disposed at the bottom of the grinding table 112 , and a guide block 113 is disposed on the inner wall of the feed pipe 111 , and the material on the upper surface of the grinding table 112 falls through the feed pipe 111 and moves out of the crushing box 1 .

[0037] In one embodiment, the booster assembly includes an air outlet pipe 5 arranged in the rotating shaft 4, the bottom of the air outlet pipe 5 passes through the rotating shaft 4 and extends to the outside of the rotating shaft 4, the air outlet hole 51 is opened on the surface of the air outlet pipe 5 and close to one end of the bottom, the top of the air outlet pipe 5 is rotatably plugged with an air inlet pipe 6, the surface of the air inlet pipe 6 and a spring 3 is wound between the top of the air outlet pipe 5 and the top of the inner wall of the rotating shaft 4, the air inlet pipe 6 transports gas to the air outlet pipe 5, when the gas pressure inside the air outlet pipe 5 is greater than the elastic force of the spring 3, the air outlet pipe 5 moves downward, stretching the spring 3, so that the air outlet hole 51 on the air outlet pipe 5 moves out of the interior of the rotating shaft 4, and the gas flows out from the air outlet hole 51 to the cavity of the crushing box 1, when the elastic force of the spring 3 is greater than the air pressure inside the air outlet pipe 5, the spring 3 drives the air outlet pipe 5 to move upward, so that the air outlet hole 51 on the air outlet pipe 5 Move it into the interior of the rotating shaft 4, and adjust the air intake speed of the air intake pipe 6 to adjust the time required for the air outlet hole 51 to move out of the rotating shaft. Therefore, intermittent air intake and pressurization can be performed inside the crushing box 1. At the same time, when the air outlet hole 51 moves into the interior of the rotating shaft, the rotating shaft here does not need to completely close the air outlet hole 51, and a slight air leak will not affect the subsequent air pressure pushing the air outlet pipe 5 to move downward. A one-way valve is provided on the air intake pipe 6 to avoid the problem of backflow during the gas transportation process. A limit block is provided on the side wall of the air outlet pipe, and a limit groove is provided at the corresponding position of the rotating shaft 4 to control the air outlet pipe 5 to move up and down only in the rotating shaft 4. Therefore, when the rotating shaft 4 rotates, the limit block and the limit groove cooperate with each other to drive the air outlet pipe 5 to rotate together, thereby comprehensively combing the gap between the grinding assembly and the grinding disc 2 41.

[0038] In order to make the gas move from top to bottom in the crushing box 1, the outlet pipe 5 extends to one end outside the rotating shaft 4 and is fixedly provided with a sealing block 52 adapted to the guide block 113. The sealing block 52 includes an upper half of the sealing block and a lower half of the sealing block. The diameter of the upper half of the sealing block gradually increases from top to bottom, and the diameter of the lower half of the sealing block gradually decreases from top to bottom. When the outlet pipe 5 moves downward, the sealing block 52 enters the guide block 113, so that a sealing area is formed between the sealing block 52 and the guide block 113, so that the gas flows upward in the crushing box 1 to achieve the purpose of clearing accumulated blockage. When the outlet pipe drives the sealing block 52 to move upward, the gap between the sealing block 52 and the guide block 113 is used for material movement. The diameter of the upper half of the sealing block gradually increases from top to bottom, which can prevent the material from accumulating on the upper surface of the sealing block 52 and achieve the purpose of diversion. The diameter of the lower half of the sealing block gradually decreases from top to bottom, which can cooperate with the guide block 113 to achieve the purpose of sealing.

[0039] In order to further improve the crushing effect, a crushing barrel 14 is connected to the lower part of the discharge pipe 111, and a grinding disc 13 is rotatably connected inside the crushing barrel 14. A fixed shaft is fixedly arranged in the middle of the grinding disc 13, and one end of the fixed shaft penetrates the crushing barrel 14 and extends to the outside of the crushing barrel 14. A motor is arranged on the end of the fixed shaft extending to the outside of the crushing barrel 14. The motor drives the grinding disc 13 to rotate through the fixed shaft, so that the grinding disc 13 interacts with the inner wall of the crushing barrel 14 to achieve the purpose of three-level crushing, thereby improving the crushing effect.

[0040] In one embodiment, the distance between the grinding disc 13 and the crushing barrel 14 is smaller than the distance between the grinding disc 2 41 and the grinding table 1 112. By reducing the gap, the crushing effect can be further improved.

[0041] In order to improve the subsequent crushing effect, multiple groups of crushing knives 42 are arranged on the surface of the rotating shaft 4 and above the grinding mechanism. The rotating shaft 4 drives the multiple groups of crushing knives 42 to rotate. When the spiral airflow pushes the material upward, it will collide with the crushing knives 42, thereby improving the subsequent crushing effect.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A dry pressurized pulverizing device, characterized in that: include: Crushing box (1); A rotating assembly, rotatably mounted on the crushing box (1); A booster assembly is arranged in the rotating assembly, the booster assembly comprises an air outlet hole (51), the air outlet hole (51) can be connected to the cavity of the pulverizing box (1), and the booster assembly moves in the rotating assembly along the axial direction so that the air outlet hole (51) is disconnected from or connected to the cavity of the pulverizing box (1); A pulverizing mechanism is arranged in the pulverizing box (1), the pulverizing mechanism comprising a grinding assembly arranged on the inner wall of the pulverizing box (1), the surface of the rotating assembly being provided with a second grinding disc (41) adapted to the grinding assembly; the second grinding disc (41) comprising a second grinding disc upper portion and a second grinding disc lower portion, the diameter of the second grinding disc upper portion gradually increasing from top to bottom, the diameter of the second grinding disc lower portion gradually decreasing from top to bottom, and a plurality of guide vanes (411) being provided on the surface of the second grinding disc upper portion; The grinding piece further comprises a feed pipe (111) arranged at the bottom of the first grinding table (112), and a guide block (113) is arranged on the inner wall of the feed pipe (111); The booster assembly comprises an air outlet pipe (5) arranged in the rotating shaft (4), the bottom of the air outlet pipe (5) passes through the rotating shaft (4) and extends to the outside of the rotating shaft (4), the air outlet hole (51) is opened on the surface of the air outlet pipe (5) and close to one end of the bottom, the top of the air outlet pipe (5) is rotatably plugged with an air inlet pipe (6), and a spring (3) is wound on the surface of the air inlet pipe (6) and located between the top of the air outlet pipe (5) and the top of the inner wall of the rotating shaft (4); The outlet pipe (5) extends to one end of the outside of the rotating shaft (4), and a sealing block (52) adapted to the guide block (113) is fixedly provided thereon, the sealing block (52) comprising an upper sealing block portion and a lower sealing block portion, the diameter of the upper sealing block portion gradually increasing from top to bottom, and the diameter of the lower sealing block portion gradually decreasing from top to bottom.

2. A dry pressurized pulverizing device according to claim 1, characterized in that: The rotating assembly comprises a rotating shaft (4) rotatably arranged on the crushing box (1) and a driving member (2) arranged on the surface of the rotating shaft (4).

3. A dry pressurized pulverizing device according to claim 2, characterized in that: The grinding assembly comprises a second grinding table (12) arranged above a second grinding disc (41) and a grinding piece (11) arranged below the second grinding disc (41); the grinding piece (11) comprises a first grinding table (112) arranged below the second grinding disc (41); the distance between the second grinding disc (41) and the second grinding table (12) is greater than the distance between the second grinding disc (41) and the first grinding table (112).

4. A dry pressurized pulverizing device according to claim 1, characterized in that: A pulverizing cylinder (14) is connected to the lower portion of the discharge pipe (111), and a grinding disc (13) is rotatably connected to the inside of the pulverizing cylinder (14). A fixed shaft is fixedly arranged in the middle of the grinding disc (13), and one end of the fixed shaft passes through the pulverizing cylinder (14) and extends to the outside of the pulverizing cylinder (14). A motor is arranged at the end of the fixed shaft extending to the outside of the pulverizing cylinder (14).

5. A dry pressurized pulverizing device according to claim 4, characterized in that: The distance between the first grinding disc (13) and the crushing cylinder (14) is smaller than the distance between the second grinding disc (41) and the first grinding table (112).

6. A dry pressurized pulverizing device according to claim 1, characterized in that: A plurality of groups of crushing knives (42) are arranged on the surface of the rotating shaft (4) and above the grinding mechanism.

Images