Efficient crushing device for high-purity silicon production

Abstract

The utility model provides an efficient crushing device for high-purity silicon production, which comprises a jet mill, a turbine sorting machine fixedly mounted in the jet mill, a first motor fixedly mounted on the back of the jet mill, a fine material outlet pipe arranged on the front of the jet mill, and a breather pipe arranged on the outer side of the jet mill, the outer side of the ventilation pipe is connected with an air inlet pipe, the inner side of the ventilation pipe is connected with a plurality of flow dividing pipes, a plurality of high-speed spray heads are fixedly installed in the jet mill, the other ends of the flow dividing pipes penetrate through the jet mill and are communicated with the high-speed spray heads, and the bottom of the jet mill is connected with a feeding pipe and provided with a discharging port; a grinding box is arranged at the bottom of the jet mill. The efficient crushing device for high-purity silicon production solves the problem that the crushing efficiency of an existing jet mill is affected due to the fact that the accumulation quantity of coarse materials is gradually increased because the existing jet mill is inconvenient to secondarily crush the accumulated coarse materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -purity silicon crushing technical field, concretely is a kind of high -purity silicon production efficient crushing device. BACKGROUND

[0002] When high-purity silicon material is produced, silica and other raw materials are needed, and the volume of silica is large, so it needs to be crushed, and at present, airflow pulverizer is generally used to crush silica and other raw materials.

[0003] When the airflow pulverizer is used, the multiple high-speed nozzles arranged therein can collide and rub the raw materials fed to the intersection point of the jet airflow, so that the silica raw materials are crushed, and the crushed raw materials are conveyed to the turbine classifier by the rising airflow, so that the coarse and fine materials are screened, the coarse materials return to the inner bottom of the equipment under their own gravity, and the fine materials are discharged from the fine material outlet through the turbine classifier, but when part of the coarse materials return to the inner bottom of the airflow pulverizer under their own gravity, they will accumulate at the bottom, and the existing airflow pulverizer is not convenient for secondary crushing of the accumulated coarse materials, so that the accumulation amount of coarse materials will gradually increase, affecting the crushing efficiency of the airflow pulverizer.

[0004] Therefore, it is necessary to provide a new high-purity silicon production efficient crushing device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a high-purity silicon production efficient crushing device with secondary crushing of accumulated coarse materials.

[0006] The high-purity silicon production efficient crushing device provided by the utility model comprises an airflow pulverizer, a turbine classifier is fixedly installed inside the airflow pulverizer, a first motor is fixedly installed on the back of the airflow pulverizer, a fine material outlet pipe is arranged on the front of the airflow pulverizer, an air pipe is arranged on the outside of the airflow pulverizer, an air inlet pipe is connected to the outside of the air pipe, a plurality of shunt pipes are connected to the inside of the air pipe, a plurality of high-speed nozzles are fixedly installed inside the airflow pulverizer, the other end of the shunt pipe penetrates the airflow pulverizer and communicates with the high-speed nozzle, and a feeding pipe is connected to the bottom of the airflow pulverizer.

[0007] The airflow pulverizer bottom is provided with a discharge port, and the airflow pulverizer bottom is provided with a grinding box, the outer side of the grinding box is provided with two coarse material outlets, the top of the grinding box is connected with a feeding pipe, the top end of the feeding pipe is fixedly communicated with the airflow pulverizer, the bottom of the grinding box is fixedly provided with a second motor, the output end of the second motor is fixedly connected with a rotating shaft, the rotating shaft extends to the top end of the grinding box and is fixedly connected with a grinding block, the top of the grinding block is provided with a placing groove, the placing groove is fixedly provided with a pneumatic cylinder inside, and the pneumatic cylinder is provided with a top rod.

[0008] In order to achieve the effect that the air pipe is more stable during use, the high-purity silicon production efficient pulverizing device is provided, preferably, a plurality of reinforcing blocks are fixed outside the air pipe, one end of the plurality of reinforcing blocks is fixed on the airflow pulverizer.

[0009] In order to achieve the effect of supporting the airflow pulverizer and the grinding box, the high-purity silicon production efficient pulverizing device is provided, preferably, two groups of support rods are fixed on the bottom of the airflow pulverizer and are distributed in a left-right symmetrical manner, the bottom end of the two groups of support rods is fixedly provided with a support base, the top of the support base is fixedly provided with two support blocks which are distributed in a left-right symmetrical manner, and the top end of the two support blocks is fixedly connected with the bottom of the grinding box.

[0010] In order to achieve the effect of supporting the grinding block, the high-purity silicon production efficient pulverizing device is provided, preferably, a support cylinder is fixed inside the grinding box and at the bottom of the grinding block, and the bottom end of the support cylinder is inserted into a rotating groove formed in the grinding box.

[0011] In order to achieve the effect that the grinding block and the conical sealing block are normally used, the high-purity silicon production efficient pulverizing device is provided, preferably, a cavity is formed in the conical sealing block, a circular plate is arranged in the cavity, and the top rod of the pneumatic cylinder extends into the cavity and is fixedly connected with the bottom of the circular plate.

[0012] In order to achieve the effect of plugging the placing groove, the high-purity silicon production efficient pulverizing device is provided, preferably, two semicircular blocks are inserted into the top of the placing groove, and a friction strip is fixed on one side of the semicircular block.

[0013] Compared with the prior art, the high-purity silicon production efficient pulverizing device has the following advantages:

[0014] The high-purity silicon production efficient pulverizing device can perform secondary grinding and pulverizing on the coarse materials accumulated at the bottom of the airflow pulverizer, so as to improve the pulverizing efficiency of the airflow pulverizer, solve the problem that the existing airflow pulverizer is not convenient for secondary pulverizing of the accumulated coarse materials, and prevent the accumulated amount of coarse materials from gradually increasing and affecting the pulverizing efficiency of the airflow pulverizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the high-efficiency crushing device for high-purity silicon production provided by the utility model;

[0016] Figure 2 This is a top view of the structure of the air flow mill of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the connection between the grinding block and the conical sealing block of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the grinding block and the conical sealing block of the utility model.

[0019] Among them: 1. Air flow mill; 101. Discharge port; 102. Grinding box; 103. Coarse material outlet; 104. Feed pipe; 105. Second motor; 106. Rotating shaft; 107. Grinding block; 108. Placement trough; 109. Cylinder; 110. Conical sealing block; 111. Support rod; 112. Support base; 113. Support block; 114. Support cylinder; 115. Rotating trough; 116. Chamber; 117. Circular plate; 118. Semicircular block; 119. Friction strip; 2. Turbine separator; 3. First motor; 4. Fine material outlet pipe; 5. Vent pipe; 501. Reinforcement block; 6. Inlet pipe; 7. Diverter pipe; 8. High-speed nozzle; 9. Feed pipe. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0021] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in Figure 1 This is a schematic diagram of the structure of the high-efficiency crushing device for high-purity silicon production provided by the utility model; Figure 2 This is a top view of the structure of the air flow mill of the utility model; Figure 3 This is a three-dimensional diagram of the connection between the grinding block and the conical sealing block of the utility model;

[0022] Figure 4The utility model discloses a grinding block and conical sealing block connection schematic diagram. A high -efficient pulverization device of high -purity silicon production, including airflow pulverizer 1, the airflow pulverizer 1 inside fixedly installed turbine sorting machine 2, the airflow pulverizer 1 back surface fixedly installed first motor 3, the airflow pulverizer 1 front is provided with fine material outlet pipe 4, the airflow pulverizer 1 outside is provided with breather pipe 5, the breather pipe 5 outside is connected with inlet pipe 6, the breather pipe 5 inboard is connected with a plurality of shunt pipe 7, the airflow pulverizer 1 inside fixedly installed with a plurality of high -speed jet 8, shunt pipe 7 other end penetrates airflow pulverizer 1 and with high -speed jet 8 intercommunication, the airflow pulverizer 1 bottom is connected with feed pipe 9, the airflow pulverizer 1 bottom is provided with discharge gate 101, the airflow pulverizer 1 bottom is provided with grinding box 102, two coarse material outlets 103 are set up in the outside of grinding box 102, the grinding box 102 top is connected with the feed pipe 104, the feed pipe 104 top end with airflow pulverizer 1 fixed intercommunication, the grinding box 102 bottom is fixedly installed with second motor 105, and second motor 105 output is fixedly connected with rotating shaft 106, and rotating shaft 106 extends to the grinding box 102 top fixedly connected with grinding block 107, and grinding block 107 top is provided with placing groove 108, and placing groove 108 inside is fixedly installed with pneumatic cylinder 109, and the airflow pulverizer 1 inside is provided with conical sealing block 110, and the top rod of pneumatic cylinder 109 sequentially passes feed pipe 104 and discharge gate 101 and is connected with conical sealing block 110.

[0023] Through the above technical scheme, the first motor 3 and the second motor 105 are all externally connected with a power supply, the feed pipe 9 is connected with an external feeding machine, the raw materials such as silica stones enter the airflow pulverizer 1 through the feeding machine and the feed pipe 9, and are converged at the intersection point of the jet streams of the multiple high-speed jets 8, the other end of the inlet pipe 6 is connected with an external air pump, so that the high-pressure airflow is delivered to the high-speed jets 8 through the inlet pipe 6, the breather pipe 5 and the shunt pipe 7, due to the convergence of the raw materials at the intersection point of the jet streams, the raw materials are collided and rubbed under the action of the airflow, so as to achieve the purpose of pulverizing the raw materials, the first motor 3 drives the turbine sorting machine 2 to operate, at this time, the pulverized raw materials move to the turbine sorting machine 2 under the action of the upward airflow, and the fine materials and the coarse materials in the pulverized raw materials are screened under the action of the centrifugal force, the fine materials are discharged from the fine material outlet pipe 4 through the turbine sorting machine 2, and the coarse materials are accumulated at the bottom of the airflow pulverizer 1 under the action of their own gravity, at this time, the top rod of the pneumatic cylinder 109 drives the conical sealing block 110 to move upward, the conical sealing block 110 is unblocked from the discharge gate 101, so that the coarse materials accumulated at the bottom of the airflow pulverizer 1 fall into the grinding box 102 through the discharge gate 101 and the feed pipe 104, the rotating shaft 106 and the grinding block 107 are driven to rotate by the second motor 105, the rotation of the grinding block 107 can grind and pulverize the coarse materials in the gap between the grinding block 107 and the grinding box 102 for the second time, so as to avoid the accumulation of the coarse materials at the bottom of the airflow pulverizer 1, and further improve the pulverization efficiency of the airflow pulverizer 1.

[0024] With reference to Figure 1 And Figure 2 A plurality of reinforcing blocks 501 are fixed outside the air pipe 5, one end of each of the plurality of reinforcing blocks 501 is fixed on the airflow pulverizer 1, and the reinforcing blocks 501 are used to fix the air pipe 5, so that the air pipe 5 is more stable during airflow conveying.

[0025] With reference to Figure 1 Two groups of support rods 111 are fixed at the bottom of the airflow pulverizer 1 and are symmetrically distributed left and right, the bottom ends of the two groups of support rods 111 are fixed with support bases 112, the top of each support base 112 is fixed with two support blocks 113 which are symmetrically distributed left and right, the top ends of the two support blocks 113 are fixedly connected with the bottom of the grinding box 102, the support rods 111 and the support bases 112 are used to support the airflow pulverizer 1 for use, so that the airflow pulverizer 1 is more stable during use, and the support blocks 113 are used to support the grinding box 102 for use, so as to improve the stability of the grinding box 102 during use.

[0026] With reference to Figure 1 A support cylinder 114 is fixed inside the grinding box 102 and at the bottom of the grinding block 107, the bottom end of the support cylinder 114 is inserted into the rotating groove 115 formed in the grinding box 102, and when the grinding block 107 rotates, the support cylinder 114 at the bottom of the grinding block 107 rotates synchronously with the grinding block 107, and the support cylinder 114 is used to support the grinding block 107, so that the grinding block 107 is more stable during rotation.

[0027] With reference to Figure 1 And Figure 4 A cavity 116 is formed in the conical sealing block 110, a circular plate 117 is arranged in the cavity 116, the top rod of the air cylinder 109 extends into the cavity 116 and is fixedly connected with the bottom of the circular plate 117, when the grinding block 107 rotates, the air cylinder 109 in the placing groove 108 rotates synchronously with the grinding block 107, when the air cylinder 109 rotates, the top rod of the air cylinder 109 drives the circular plate 117 in the cavity 116 to rotate, and the circular plate 117 is arranged to enable the grinding block 107 to normally rotate at the bottom of the conical sealing block 110.

[0028] With reference to Figure 1 And Figure 3 Two semicircular blocks 118 are inserted into the top of the placing groove 108, one side of each semicircular block 118 is fixed with a friction strip 119, the two semicircular blocks 118 are inserted into the placing groove 108 and are in contact with each other, the placing groove 108 is blocked by the two semicircular blocks 118, which prevents the coarse material from falling into the placing groove 108 to some extent, and the friction strip 119 is used to increase the friction between the semicircular block 118 and the inner wall of the placing groove 108, so that the semicircular block 118 is more firmly fixed in the placing groove 108.

[0029] The implementation principle of the efficient crushing device for high-purity silicon production in the embodiment of the utility model is as follows: the coarse material is accumulated at the bottom of the jet mill 1 under the action of its own gravity, at this time, the top rod of the air cylinder 109 drives the conical sealing block 110 to move upward, the conical sealing block 110 is removed from the blocking of the discharge port 101, so that the coarse material accumulated at the bottom of the jet mill 1 falls into the grinding box 102 through the discharge port 101 and the material conveying pipe 104, the rotation shaft 106 and the grinding block 107 are driven to rotate by the second motor 105, the rotation of the grinding block 107 can perform secondary grinding and crushing on the coarse material between the grinding block 107 and the grinding box 102, the coarse material is prevented from being accumulated at the bottom of the jet mill 1, and the crushing efficiency of the jet mill 1 is improved.

[0030] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail, and the components known by the person skilled in the art are known or obtained by conventional experimental methods.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency crushing device for high-purity silicon production, characterized by: Including air flow pulverizer (1), the inside fixed installation has turbine sorting machine (2), the back of air flow pulverizer (1) is installed and fixed with first motor (3), the front of air flow pulverizer (1) is provided with fine material outlet pipe (4), the outside of air flow pulverizer (1) is provided with ventilation pipe (5), the outside of ventilation pipe (5) is connected with air inlet pipe (6), the inside of ventilation pipe (5) is connected with a plurality of shunt pipe (7), the inside fixed installation of air flow pulverizer (1) has a plurality of high-speed nozzle (8), the other end of shunt pipe (7) penetrates air flow pulverizer (1) and communicates with high-speed nozzle (8), the bottom of air flow pulverizer (1) is connected with feed pipe (9); The bottom of the air flow pulverizer (1) is provided with an outlet (101), and the bottom of the air flow pulverizer (1) is provided with a grinding box (102). The outside of the grinding box (102) is provided with two coarse material outlets (103). The top of the grinding box (102) is connected with a feed pipe (104). The top end of the feed pipe (104) is fixedly connected with the air flow pulverizer (1). The bottom of the grinding box (102) is fixedly connected with a second motor (105). The output end of the second motor (105) is fixedly connected with a rotating shaft (106). The rotating shaft (106) extends to the top of the grinding box (102) and is fixedly connected with a grinding block (107). The top of the grinding block (107) is provided with a placing groove (108). The inside of the placing groove (108) is fixedly connected with a pneumatic cylinder (109). The inside of the air flow pulverizer (1) is provided with a conical sealing block (110). The top rod of the pneumatic cylinder (109) penetrates the feed pipe (104) and the outlet (101) in sequence and is connected with the conical sealing block (110).

2. The high-efficiency crushing device for producing high-purity silicon according to claim 1, characterized in that: The outside of the ventilation pipe (5) is fixedly connected with a plurality of reinforcing blocks (501). One end of each of the reinforcing blocks (501) is fixedly connected with the air flow pulverizer (1).

3. The high-efficiency crushing device for producing high-purity silicon according to claim 1, characterized in that: The bottom of the air flow pulverizer (1) is fixedly connected with two groups of support rods (111) which are symmetrically distributed left and right. The bottom of each of the two groups of support rods (111) is fixedly connected with a support base (112). The top of the support base (112) is fixedly connected with two support blocks (113) which are symmetrically distributed left and right. The top of each of the two support blocks (113) is fixedly connected with the bottom of the grinding box (102).

4. The high-efficiency crushing device for producing high-purity silicon according to claim 1, characterized in that: The inside of the grinding box (102) and the bottom of the grinding block (107) are fixedly connected with a support cylinder (114). The bottom of the support cylinder (114) is inserted into the rotating groove (115) of the grinding box (102).

5. The high-efficiency crushing device for producing high-purity silicon according to claim 1, characterized in that: The inside of the conical sealing block (110) is provided with a cavity (116). The inside of the cavity (116) is provided with a circular plate (117). The top rod of the pneumatic cylinder (109) extends into the cavity (116) and is fixedly connected with the bottom of the circular plate (117).

6. The high-efficiency crushing device for producing high-purity silicon according to claim 1, characterized in that: The top of the placing groove (108) is inserted with two semicircular blocks (118). One side of each of the semicircular blocks (118) is fixedly connected with a friction strip (119).

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