Superfine grinding device for nonmetallic minerals

Abstract

The invention provides a nonmetallic mineral superfine grinding device, which relates to the technical field of nonmetallic mineral processing, and comprises a primary grinding mechanism, an efficient grinding mechanism connected with the primary grinding mechanism, and a pulse dust collector connected with the efficient grinding mechanism, a feeding mechanism is arranged on the working face of the top end of the primary grinding mechanism, the top end of the primary grinding mechanism is connected with the separating mechanism through a first connecting pipe, and the output end of the separating mechanism communicates with the efficient grinding mechanism. The efficient grinding mechanism is communicated with the pulse dust collector through a second connecting pipe; a discharging device is arranged at the bottom of the pulse dust collector; through the combined arrangement of the primary grinding mechanism and the efficient grinding mechanism, materials can be ground at multiple angles in all directions, the materials are further refined, the grinding quality is improved, non-metallic minerals are effectively ground to be in the superfine granularity, and the application scene with the high product fineness requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of non-metallic mineral processing, in particular to a non-metallic mineral ultrafine grinding device. Background Art

[0002] In the development of modern industry, non-metallic minerals, as important raw materials, are widely used in numerous fields. With the continuous advancement of technology in various industries, the requirements for the quality and fineness of non-metallic minerals are becoming increasingly stringent. In particular, in some high-end application scenarios, the demand for ultra-fine particle size non-metallic minerals is growing.

[0003] Traditional non-metallic mineral grinding devices mostly use a single grinding method. When processing non-metallic minerals with high hardness or complex structure, it is difficult to effectively reduce their particle size to an ultrafine level, which cannot meet the industry's strict requirements for fineness; secondly, the grinding components of traditional grinding devices cannot make the material fully contact with the grinding disc, and since traditional non-metallic mineral grinding devices lack a separation mechanism, a large amount of air is mixed with the material during discharge, which reduces the discharge efficiency and affects the product quality; secondly, traditional non-metallic mineral grinding devices usually discharge dust and exhaust gas directly into the air, causing serious pollution to the environment, and long-term inhalation of dust poses a threat to the health of workers. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-metallic mineral ultrafine grinding device to solve the technical problems existing in the prior art.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] A non-metallic mineral ultrafine grinding device comprises: a primary grinding mechanism, a high-efficiency grinding mechanism connected to the primary grinding mechanism, and a pulse dust collector connected to the high-efficiency grinding mechanism; a feeding mechanism is provided on the top working surface of the primary grinding mechanism, the top of the primary grinding mechanism is connected to the separation mechanism via a first connecting pipe, and the output end of the separation mechanism is connected to the high-efficiency grinding mechanism; the high-efficiency grinding mechanism is connected to the pulse dust collector via a second connecting pipe; a discharging device is provided at the bottom of the pulse dust collector.

[0007] Furthermore, a gas purifier is provided through the separation mechanism, and the gas purifier is used to discharge the gas after being ground by the primary grinding mechanism.

[0008] Furthermore, the feeding mechanism includes: a screw feeder and a feeding pipe arranged at the top of the screw feeder; the feeding pipe is connected to the screw feeder, one end of the screw feeder is connected to the output end of the first motor, and the end of the screw feeder away from the feeding pipe is connected to the primary grinding mechanism.

[0009] Furthermore, the primary grinding mechanism includes: a first shell, a grinding disc arranged inside the first shell, an extrusion wall sleeved on the outside of the grinding disc and a first high-pressure fan arranged through the top of the first shell; the first shell is cylindrical, and the bottom working surface is provided with a second motor, the output end of the second motor is connected to the first transmission shaft, the first transmission shaft passes through the working surface on one side of the first shell and is connected to the grinding disc; a grading impeller is provided on the top wall inside the first shell, the grading impeller is sleeved on the first high-pressure fan, and the output end of the first high-pressure fan is connected to the first connecting pipe; the extrusion wall is annular and does not contact the grinding disc, and a plurality of grooves are provided on it; an air inlet pipe is provided inside the second shell, the air inlet pipe is provided with a one-way valve, and is connected to the inside of the first shell, and a screen is provided at the connection with the first shell.

[0010] Furthermore, the separation mechanism includes: a spiral air inlet pipe, the working surface on one side of the spiral air inlet pipe is connected to the first connecting pipe, a plurality of guide plates are provided on its inner wall, the bottom end of the spiral air inlet pipe is connected to the high-efficiency grinding mechanism through a drop pipe, and an electromagnetic valve is provided on the drop pipe; the interior of the spiral air inlet pipe is connected to the gas purifier.

[0011] Furthermore, the high-efficiency grinding mechanism includes: a second shell, a second high-pressure fan and a third motor respectively passing through the top and bottom working surfaces of the second shell; the output end of the third motor is connected to the second transmission shaft, the second transmission shaft passes through the working surface on one side of the second shell, and its outer shell is connected to the grinding roller and the high-strength ceramic ball group, and the grinding roller and the high-strength ceramic ball group are arranged alternately; the inner top wall of the second shell is provided with a collecting filter cover, the collecting filter cover is connected to the input end of the second high-pressure fan, and the output end of the second high-pressure fan is connected to the pulse dust collector through a second connecting pipe.

[0012] Furthermore, the pulse dust collector includes: a third shell, a hanger arranged inside the third shell, and a plurality of cloth bags hung on the hanger; the working surface on one side of the third shell is connected to the first connecting pipe through the inlet, and the working surface on the other side is provided with an exhaust pipe, the bottom end of which is provided with a discharge pipe, and the discharge pipe is connected to the discharge device; the working surface on one side of the first shell is provided with an electromagnetic pulse valve, the output end of the electromagnetic pulse valve is connected to the blow pipe, and the blow pipe has the same orthographic projection area as the cloth bag.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The present invention adopts a combination of a primary grinding mechanism and a high-efficiency grinding mechanism. When grinding non-metallic minerals, the primary grinding mechanism performs preliminary grinding of the non-metallic minerals through the cooperation of the grinding disc and the extrusion wall. Then, the grinding roller and high-strength ceramic ball group in the high-efficiency grinding mechanism perform multi-angle and all-round grinding on the material after preliminary grinding, further refining the material, improving the grinding quality, and effectively grinding the non-metallic minerals to ultrafine particles, meeting the requirements of fields with high product fineness.

[0015] (2) The present invention, through the provision of a separation mechanism and a gas purifier, can initially separate the material and gas after preliminary grinding in the spiral air inlet pipe through the action of centrifugal force, and the separated gas is discharged through the gas purifier, thereby reducing pollution to the environment; and the separated material enters the high-efficiency grinding mechanism, ensuring that the particle size of the material processed by the high-efficiency grinding mechanism is relatively uniform, thereby improving the overall grinding efficiency and product consistency;

[0016] (3) The present invention can collect the ultrafine materials ground by the high-efficiency grinding mechanism through the setting of the pulse dust collector, and discharge the air mixed in the ultrafine materials out of the device, and then the electromagnetic pulse valve blows the ultrafine materials on the adsorption bag to the discharging device through the blowing pipe, realizing the automation of the discharging process and improving the discharging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the primary grinding mechanism of the present invention;

[0019] Figure 3 A top view of the extruded wall of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection between the separation mechanism and the high-efficiency grinding mechanism of the present invention;

[0021] Figure 5 Schematic diagram of the internal structure of the pulse dust collector of the present invention;

[0022] In the figure: 1. Feeding mechanism; 101. Screw feeder; 102. Feed pipe; 103. First motor; 2. Primary grinding mechanism; 201. First housing; 202. Extrusion wall; 203. First transmission shaft; 204. Second motor; 205. Air inlet pipe; 206. Classifying impeller; 207. High-pressure blower; 208. Grinding disc; 209. Groove; 3. Separation mechanism; 301. Spiral air inlet pipe; 302. Drain plate; 303. Dropping pipe; 304. Solenoid valve; 4. Gas purifier; 5. High-efficiency grinding mechanism; 501. Second shell; 502. Grinding roller; 503. Third motor; 504. High-strength ceramic ball group; 505. Collection filter cover; 506. Second high-pressure fan; 507. Second transmission shaft; 6. Pulse dust collector; 601. Third shell; 602. Inlet; 603. Discharge pipe; 604. Electromagnetic pulse valve; 605. Blowing pipe; 606. Hanging rack; 607. Cloth bag; 7. Exhaust pipe; 8. Discharging device; 9. First connecting pipe; 10. Second connecting pipe. DETAILED DESCRIPTION

[0023] To make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Identical parts are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0024] like Figure 1 As shown, this embodiment provides a non-metallic mineral ultrafine grinding device, including: a primary grinding mechanism 2, a high-efficiency grinding mechanism 5 connected to the primary grinding mechanism 2, and a pulse dust collector 6 connected to the high-efficiency grinding mechanism 5; the top working surface of the primary grinding mechanism 2 is provided with a feeding mechanism 1, and the feeding mechanism 1 can accurately and stably transport the non-metallic mineral into the primary grinding mechanism 2, which is beneficial to maintain the continuity and stability of the primary grinding mechanism 2 and improve the grinding efficiency; the top of the primary grinding mechanism 2 is connected to the separation mechanism 3 through a first connecting pipe 9, and the separation mechanism 3 can separate the material and gas after the primary grinding mechanism 2 is ground. The output end of the separation mechanism 3 is connected to the high-efficiency grinding mechanism 5, and the high-efficiency grinding mechanism 5 is used to deeply grind the material, further refine the material, and improve the discharge quality; the high-efficiency grinding mechanism 5 is connected to the pulse dust collector 6 through a second connecting pipe 10, and the pulse dust collector 6 removes impurities from the ultrafine material after being ground by the high-efficiency grinding mechanism 5, effectively ensuring the quality of the ultrafine material, and can meet the needs of different application fields; the pulse dust collector 6 is provided with a discharge device 8 at the bottom.

[0025] Further, a gas purifier 4 is arranged through the separation mechanism 3, and the gas purifier 4 is used for discharging the gas after being ground by the primary grinding mechanism 2; the gas purifier 4 is a prior art, and will not be described in detail here; specifically, the gas purifier 4 discharges the separated gas after purification, effectively reducing the pollution of the waste gas generated in the grinding process to the surrounding environment and the threat to human health.

[0026] As Figure 2-3As shown, the feeding mechanism 1 includes: a screw feeder 101 and a feeding pipe 102 provided at the top of the screw feeder 101; the feeding pipe 102 is connected to the screw feeder 101, one end of the screw feeder 101 is connected to the output end of the first motor 103, and the end of the screw feeder 101 away from the feeding pipe 102 is connected to the primary grinding mechanism 2; when working, the first motor 103 drives the screw feeder 101 to rotate, and feeds the non-metallic minerals input by the feeding pipe 102 into the primary grinding mechanism 2; the primary grinding mechanism 2 includes: a first shell 201, a grinding disc 208 provided inside the first shell 201, and a grinding disc 208 sleeved on the grinding disc. The first housing 201 is cylindrical, and the bottom working surface is provided with a second motor 204, the output end of the second motor 204 is connected to the first transmission shaft 203, the first transmission shaft 203 passes through the working surface of one side of the first housing 201, and is connected to the grinding disc 208; the top wall of the first housing 201 is provided with a grading impeller 206, the grading impeller 206 is sleeved on the first high-pressure fan 207, and the output end of the first high-pressure fan 207 is connected to the first connecting pipe 9; the extrusion wall 202 is annular and does not connect with the grinding disc The disc 208 is in contact with the disc 208, and a plurality of grooves 209 are provided on it. The grooves 209 can increase the friction and contact area between the material and the extrusion wall 202, thereby enhancing the grinding effect, so that the material can be effectively crushed and refined in the preliminary grinding stage; the second shell 501 is provided with an air inlet pipe 205, the air inlet pipe 205 is provided with a one-way valve, and is connected to the interior of the first shell 201, and a screen is provided at the connection with the first shell 201, the screen can effectively prevent the material inside the first shell 201 from being thrown out through the air inlet pipe 205, and can also effectively prevent large particles of debris in the outside air from entering the first shell 201, maintaining the primary grinding mechanism 2 Stable circulation of internal airflow; when in use, the operator starts the second motor 204, the second motor 204 drives the first transmission shaft 203 to rotate, and the first transmission shaft 203 drives the grinding disc 208 to grind the non-metallic minerals. The non-metallic minerals rub and squeeze with the extrusion wall 202, thereby crushing and refining. At this time, the first high-pressure fan 207 is started, and the materials that meet the preset grinding standards pass through the first high-pressure fan 207. The ground materials in the first shell 201 pass through the grading impeller 206 and enter the first connecting pipe 9, and then enter the separation mechanism 3 through the first connecting pipe 9; and the materials that do not meet the preset standards continue to be ground in the first shell 201.

[0027] like Figure 4As shown, the separation mechanism 3 includes: a spiral air inlet pipe 301, the working surface on one side of the spiral air inlet pipe 301 is connected to the first connecting pipe 9, and a plurality of guide plates 302 are provided on the inner wall thereof, and the guide plates 302 can guide the airflow and material to move along a spiral trajectory, and utilize the action of centrifugal force to make the heavier material particles gradually approach the inner wall of the spiral air inlet pipe 301 and fall into the bottom end of the spiral air inlet pipe 301; while the lighter gas flows in the central area, thereby realizing the preliminary separation of the material and the gas; the bottom end of the spiral air inlet pipe 301 is connected to the high-efficiency grinding mechanism 5 through the drop pipe 303, and the drop pipe 303 is provided with a solenoid valve 304, and the separated material enters the high-efficiency grinding mechanism 5 through the drop pipe 303; the interior of the spiral air inlet pipe 301 is connected to the gas purifier 4, and the separated gas enters the gas purifier 4. After being filtered by the gas purifier 4, the gas that meets the emission standards is discharged from the device.

[0028] like Figure 4 As shown, the high-efficiency grinding mechanism 5 includes: a second shell 501, a second high-pressure fan 506 and a third motor 503 respectively penetrating the top and bottom working surfaces of the second shell 501; the output end of the third motor 503 is connected to the second transmission shaft 507, and the second transmission shaft 507 penetrates the working surface on one side of the second shell 501, and its outer shell is connected to the grinding roller 502 and the high-strength ceramic ball group 504, the grinding roller 502 and the high-strength ceramic ball group 504 are staggered, and the grinding roller 502 and the high-strength ceramic ball group 504 can grind the material from different angles; the grinding roller 502 crushes the material again by virtue of its large contact area and strong extrusion force; the high-strength ceramic ball Group 504 has a preset hardness and wear resistance, which can further refine the material and ensure that the material can be ground to ultrafine particle size to meet the needs of various high-end application fields for ultrafine materials; the inner top wall of the second shell 501 is provided with a collecting filter cover 505, and the collecting filter cover 505 is connected to the input end of the second high-pressure fan 506. The collecting filter cover 505 can effectively collect ultrafine materials that meet the preset standards, and continue to grind materials that do not meet the preset standards; the output end of the second high-pressure fan 506 is connected to the pulse dust collector 6 through the second connecting pipe 10, and the ultrafine materials that meet the preset standards are sent into the pulse dust collector 6 for impurity removal by the suction force of the second high-pressure fan 506.

[0029] like Figure 5As shown, the pulse dust collector 6 includes: a third shell 601, a hanger 606 arranged in the third shell 601 and a plurality of cloth bags 607 hung with the hanger 606; the working surface on one side of the third shell 601 is connected to the first connecting pipe 9 through the inlet 602, and the inlet 602 is provided with a one-way valve, which can ensure the one-way movement of ultrafine materials; the working surface on the other side of the third shell 601 is provided with an exhaust pipe 7, the bottom end of which is provided with a discharge pipe 603, and the discharge pipe 603 is connected to the discharge device 8; the working surface on one side of the first shell 201 is provided with an electromagnetic pulse valve 604, the electromagnetic pulse valve 604 can spray high-pressure gas, and is a prior art, so it will not be described in detail here; the output end of the electromagnetic pulse valve 604 is connected to the The blowing pipe 605 is connected, and the blowing pipe 605 has the same positive projection area as the cloth bag 607. A preset working distance is left between the multiple cloth bags 607. The cloth bags 607 can effectively intercept the ultrafine materials entering from the high-efficiency grinding mechanism 5 to achieve separation of materials and gas; when working, the ultrafine materials enter the third shell 601 through the second connecting pipe 10. At this time, the ultrafine materials are adsorbed by the cloth bag 607, and the gas is discharged from the device through the exhaust pipe 7. When the cloth bag 607 is cleaned, the electromagnetic pulse valve 604 is started, and the high-pressure airflow generated by it is blown into the cloth bag 607 through the blowing pipe 605. At this time, the cloth bag 607 expands and vibrates instantly, shaking off the ultrafine flow attached to its surface, and entering the discharging device 8 through the discharge pipe 603.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A non-metallic mineral ultrafine grinding device, characterized by: include: A primary grinding mechanism (2), a high-efficiency grinding mechanism (5) connected to the primary grinding mechanism (2), and a pulse dust collector (6) connected to the high-efficiency grinding mechanism (5); a feeding mechanism (1) is provided on the top working surface of the primary grinding mechanism (2); the top of the primary grinding mechanism (2) is connected to the separation mechanism (3) through a first connecting pipe (9); the output end of the separation mechanism (3) is connected to the high-efficiency grinding mechanism (5); the high-efficiency grinding mechanism (5) is connected to the pulse dust collector (6) through a second connecting pipe (10); and a discharging device (8) is provided at the bottom of the pulse dust collector (6).

2. The non-metallic mineral ultrafine grinding device according to claim 1, characterized in that: A gas purifier (4) is provided through the separation mechanism (3), and the gas purifier (4) is used to discharge the gas after being ground by the primary grinding mechanism (2).

3. The non-metallic mineral ultrafine grinding device according to claim 1, characterized in that: The feeding mechanism (1) comprises: a screw feeder (101) and a feeding pipe (102) arranged at the top end of the screw feeder (101); the feeding pipe (102) is connected to the screw feeder (101), one end of the screw feeder (101) is connected to the output end of a first motor (103), and the end of the screw feeder (101) away from the feeding pipe (102) is connected to the primary grinding mechanism (2).

4. The non-metallic mineral ultrafine grinding device according to claim 3, characterized in that: The primary grinding mechanism (2) comprises: a first shell (201), a grinding disc (208) arranged in the first shell (201), an extrusion wall (202) sleeved on the outside of the grinding disc (208), and a first high-pressure fan (207) arranged through the top of the first shell (201); the first shell (201) is cylindrical, and a second motor (204) is provided on the bottom working surface, the output end of the second motor (204) is connected to a first transmission shaft (203), the first transmission shaft (203) passes through the working surface on one side of the first shell (201) and is connected to the grinding disc (208). The first housing (201) is provided with a grading impeller (206) on its top wall, the grading impeller (206) being sleeved on the first high-pressure blower (207), and the output end of the first high-pressure blower (207) being in communication with the first connecting pipe (9); the extrusion wall (202) is annular and does not contact the grinding disc (208), and a plurality of grooves (209) are provided on the extrusion wall; the second housing (501) is provided with an air inlet pipe (205), the air inlet pipe (205) being provided with a one-way valve and being in communication with the interior of the first housing (201), and a screen being provided at the connection with the first housing (201).

5. The non-metallic mineral ultrafine grinding device according to claim 4, characterized in that: The separation mechanism (3) comprises: a spiral air inlet pipe (301); a working surface on one side of the spiral air inlet pipe (301) is connected to the first connecting pipe (9); a plurality of guide plates (302) are provided on the inner wall of the spiral air inlet pipe; the bottom end of the spiral air inlet pipe is connected to the high-efficiency grinding mechanism (5) through a drop pipe (303); a solenoid valve (304) is provided on the drop pipe (303); and the interior of the spiral air inlet pipe (301) is connected to the gas purifier (4).

6. The non-metallic mineral ultrafine grinding device according to claim 5, characterized in that: The high-efficiency grinding mechanism (5) comprises: a second shell (501), a second high-pressure fan (506) and a third motor (503) respectively penetrating the top and bottom working surfaces of the second shell (501); the output end of the third motor (503) is connected to a second transmission shaft (507), the second transmission shaft (507) penetrates the working surface on one side of the second shell (501), and the outer surface of the second transmission shaft is connected to a grinding roller (502) and a high-strength ceramic ball group (504), and the grinding roller (502) and the high-strength ceramic ball group (504) are arranged in a staggered manner; the inner top wall of the second shell (501) is provided with a collecting filter cover (505), the collecting filter cover (505) is connected to the input end of the second high-pressure fan (506), and the output end of the second high-pressure fan (506) is connected to the pulse dust collector (6) through a second connecting pipe (10).

7. The non-metallic mineral ultrafine grinding device according to claim 6, characterized in that: The pulse dust collector (6) comprises: a third shell (601), a hanger (606) arranged in the third shell (601), and a plurality of cloth bags (607) hung on the hanger (606); a working surface on one side of the third shell (601) is connected to the first connecting pipe (9) through an inlet (602), and a working surface on the other side is provided with an exhaust pipe (7), the bottom end of which is provided with a discharge pipe (603), and the discharge pipe (603) is connected to a discharge device (8); an electromagnetic pulse valve (604) is provided on the working surface on one side of the first shell (201), the output end of the electromagnetic pulse valve (604) is connected to a blow pipe (605), and the blow pipe (605) has the same orthographic projection area as the cloth bags (607).

Images