Energy-saving electric grinding device for plugging agent production

Abstract

The invention discloses an energy-saving type electric grinding device for plugging agent production, and relates to the technical field of grinding devices, the energy-saving type electric grinding device comprises a grinding box and a feeding bin, and further comprises a driving assembly; the driving assembly comprises a supporting frame, a driving motor, a small bevel gear and a large bevel gear. A heat dissipation opening is formed in the end of the driving motor, a heat absorption cover is arranged above the heat dissipation opening, and a heat conduction pipe is fixed to the end, away from the driving motor, of the heat absorption cover. A ventilation pipe made of metal is fixed to one side of the feeding bin, the air inlet end of the ventilation pipe is connected with the air outlet end of the heat conduction pipe, an electric heating wire is wound around the outer wall of the ventilation pipe, and the electric heating wire is wrapped with ceramic fiber cotton. A movable shaft is rotationally connected into the feeding bin; a plurality of uniformly distributed scattering plates are fixed on the side surface of the movable shaft; a rotating shaft is movably connected into the grinding box, and a grinding ball is fixed to the unoccupied end of the rotating shaft; and synchronous operation of material grinding and crushing can be achieved, heat dissipation is accelerated, meanwhile, material particles are dried, and the material grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of grinding devices, and particularly relates to an energy-saving electric grinding device for plugging agent production. BACKGROUND

[0002] The plugging agent is a material for filling and sealing leaks, holes or cracks, which prevents liquid or gas leakage and effectively protects the integrity of equipment and structures.

[0003] In the plugging agent processing process, the crushing and grinding of raw materials are crucial preprocessing steps. By grinding, the solid material of large particles is refined, so that the particle sizes of different sizes are slightly different, which facilitates efficient filling of pores and formation of a dense and solid plugging layer. Among them, bentonite is an essential basic material in the raw material of the plugging agent. The bentonite particles are prone to adsorb humid gas, and there is often a situation of bentonite particle agglomeration, which causes the bentonite to be easily adhered to the grinding roller during grinding, thereby affecting the grinding efficiency of the grinding roller and reducing the grinding fineness of the bentonite particles, thereby greatly reducing the production quality of the plugging agent. SUMMARY

[0004] The purpose of the present application is to provide an energy-saving electric grinding device for plugging agent production, which solves the problem that the bentonite which is formed into lumps due to moisture is easily adhered to the grinding roller during grinding, which greatly affects the grinding efficiency of the grinding roller and reduces the grinding fineness of the bentonite particles.

[0005] The application provides an energy-saving electric grinding device for plugging agent production, which comprises a grinding box and a feed bin, and further comprises a driving assembly. The driving assembly comprises a support frame, a driving motor, small bevel gears and large bevel gears. The end of the driving motor is provided with a heat dissipation opening, a heat absorption cover is arranged above the heat dissipation opening, and a heat conduction pipe is fixed to the end of the heat absorption cover away from the driving motor. A metal air pipe is fixed to one side of the feed bin, the air inlet end of the air pipe is connected with the air outlet end of the heat conduction pipe, and an electric heating wire is wound on the outer wall of the air pipe, and the electric heating wire is wrapped with ceramic fiber cotton. The movable shaft is rotatably connected in the feed bin, and a plurality of uniformly distributed scattering plates are fixed to the side surface of the movable shaft. The rotating shaft is movably connected in the grinding box, the spare end of the rotating shaft is fixed with a grinding ball, the lower side of the grinding ball is provided with a fixed seat, and a grinding gap is left between the grinding ball and the fixed seat. The driving assembly is used for driving the rotating shaft and the movable shaft to rotate simultaneously.

[0006] Further, the movable shaft is a hollow cylinder with a rectangular slot on the side, the air outlet end of the air pipe extends into the movable shaft, and the dispersing plate is a rectangular plate with an opening on the side close to the rectangular slot; The opening of the dispersing plate coincides with the rectangular slot, and a plurality of air outlets are arranged on both sides of the dispersing plate in the length direction.

[0007] Further, a guide cover is fixed to the inner top of the grinding box, the guide cover is a hollow inverted cone with openings at both ends, and the end close to the feed bin extends into the feed bin; The end of the guide cover away from the feed bin is fixed with a feeding cylinder, and the discharge end of the feeding cylinder is located above the grinding ball; A branch pipe is fixed on the air pipe, the branch pipe is in communication with the inside of the air pipe, and the free end of the branch pipe extends into the feeding cylinder.

[0008] Further, a gas permeable net is fixed to the inner wall of the feeding cylinder, the gas permeable net is a ring-shaped metal soft net, and the two ends are fixed to the feeding cylinder through a hard net; The gas permeable net and the feeding cylinder are provided with an air inlet gap, and the free end of the branch pipe extends into the air inlet gap; A plurality of resistance balls are uniformly distributed on the gas permeable net away from the feeding cylinder, and each resistance ball is fixed to the gas permeable net through a metal wire.

[0009] Further, the grinding ball is a semi-circular sphere, the end surface is an arc surface, the grinding ball is provided with a guide hole, and the bentonite particles enter the grinding gap from the guide hole; The fixed seat is a hollow semi-circular spherical plate with an opening close to one end of the grinding ball, and the opening end is fixed with an overflow plate, the overflow plate is an arc plate with a height lower than the end of the grinding ball.

[0010] Further, a jet plate is arranged below the overflow plate, the jet plate is used for jetting hot air, a plurality of arc-shaped reserved slots are arranged on the overflow plate, and the jet end of the jet plate is located below the reserved slots; A gas feeding pipe is fixed on the air pipe, the gas inlet end of the gas feeding pipe extends into the air pipe, and the gas outlet end of the gas feeding pipe extends into the jet plate.

[0011] Further, a screening seat is fixed on the rotating shaft, the screening seat is a hollow ring body with a long strip-shaped sieve hole on the side; The air pipe is fixed to the top of the screening seat, the air pipe is a hollow annular pipe with openings at both ends; The inner top of the grinding box is provided with an annular groove, one end of the air pipe extends into the annular groove, and the other end of the air pipe extends into the screening seat; The feeding pipe is fixed on the top of the grinding box, a feeding pump is fixed on the feeding pipe, the feeding end of the feeding pipe extends into the air pipe, a collecting box is positioned at the bottom of the grinding box, and the discharging end of the feeding pipe is located above the collecting box.

[0012] Further, the air injection plate is a hollow inverted cone ring, and the air flow injected by the air injection plate is inclined towards the screening seat.

[0013] Further, the air pump is fixed on the air inlet end of the air feeding pipe, the air inlet end of the air pump is fixed with an air suction pipe, one end of the air suction pipe extends into the grinding box, and the extending end of the air suction pipe is located above the overflow plate.

[0014] Further, the arc-shaped side plates are fixed on the sides of the grinding box close to the material guide cover, and the broken blocks are uniformly and spacedly fixed on the inner sides of the side plates.

[0015] Compared with the prior art, the driving assembly, the grinding balls and the dispersing plate are arranged, so that the material grinding and breaking operations can be simultaneously performed, the driving source is reduced, the heat generated during the heat dissipation of the driving motor is reasonably utilized, the heat dissipation is accelerated, the material particles are dried, and the material grinding efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Figure 1 It is a perspective structural schematic diagram of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 2 It is a sectional perspective structural schematic diagram of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 3 It is a structural schematic diagram of the connection relationship between the large bevel gear and the rotating shaft of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 4 It is a perspective structural schematic diagram of the grinding ball and the fixed seat of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 5 It is a perspective structural schematic diagram of the connection relationship between the movable shaft and the dispersing plate of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 6 It is a front view sectional structural schematic diagram of the energy-saving electric powder grinding device for the plugging agent production of the present application; Figure 7It is a stereogrammatic structure schematic diagram of the connection relation between the screening seat and the ventilation ring of the energy-saving electric powder grinding device for the plugging agent production of the application; Figure 8 It is a sectional structure schematic diagram of the position relation between the feeding cylinder and the air permeable net of the energy-saving electric powder grinding device for the plugging agent production of the application; Figure 9 It is the energy-saving electric powder grinding device for the plugging agent production of the application Figure 8 It is a local enlarged structure schematic diagram of A in the device.

[0018] In the figure: 100, grinding box; 1001, side plate; 1002, crushing block; 110, feeding bin; 111, movable shaft; 112, scattering plate; 113, ventilation pipe; 114, branch pipe; 115, material guide cover; 116, feeding cylinder; 1161, air permeable net; 1162, resistance ball; 120, driving assembly; 1201, support frame; 121, driving motor; 122, small bevel gear; 123, large bevel gear; 130, heat absorption cover; 131, heat conduction pipe; 140, material collecting box; 150, grinding ball; 151, rotating shaft; 152, material guide hole; 160, air feeding pipe; 161, air suction pipe; 170, fixing seat; 171, overflow plate; 172, reserved groove; 180, air jet plate; 190, feeding pipe; 191, screening seat; 1911, ventilation ring. DETAILED DESCRIPTION

[0019] In order to make the person in the art better understand the technical solutions in the application, the technical solutions in the embodiments of the application will be described clearly and completely below in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the person in the art without creative labor should belong to the protection scope of the application.

[0020] As Figures 1 to 4 shown, the application proposes an energy-saving electric powder grinding device for plugging agent production, which comprises a grinding box 100 and a feeding bin 110. The feeding bin 110 is fixed on the top of the grinding box 100. After the bentonite particles pass through the feeding bin 110, they enter the grinding box 100. The device further comprises a driving assembly 120. The driving assembly 120 comprises a support frame 1201, a driving motor 121, a small bevel gear 122 and a large bevel gear 123. The driving motor 121 is used to drive the rotation of the large bevel gear 123. The driving motor 121 is a three-phase asynchronous motor, and a speed reducer is installed on the output shaft of the driving motor 121. The output shaft of the speed reducer is connected with the large bevel gear 123. The support frame 1201 is fixed on the top of the grinding box 100, the driving motor 121 is fixed on the support frame 1201, the large bevel gear 123 is movably connected to the top of the grinding box 100, and the small bevel gear 122 is located above the large bevel gear 123 and movably connected to one side of the feed bin 110; The end of the driving motor 121 is provided with a heat dissipation opening, a heat absorption cover 130 is arranged above the heat dissipation opening, the heat absorption cover 130 is a conical cover with a hollow interior and open ends, the heat absorption cover 130 can cover the heat dissipation opening, a gap is left between the heat absorption cover 130 and the heat dissipation opening, the gap is 0.5-0.8 cm, a heat conduction pipe 131 is fixed to one end of the heat absorption cover 130 away from the driving motor 121, an air suction pump is fixed to the heat conduction pipe 131, and the air suction pump is fixed to the top of the grinding box 100. The heat generated by the heat dissipation opening of the driving motor 121 is sucked into the heat conduction pipe 131 through the air suction pump; It should be noted that the driving motor 121 will generate heat during long-time operation, and the working temperature of the winding inside the driving motor 121 is usually 70-130 DEG C. The heat generated by the winding inside the driving motor 121 is discharged through the heat dissipation opening. By increasing the negative pressure in the heat conduction pipe 131 through the air suction pump, the heat dissipation of the driving motor 121 can be accelerated, and the heat dissipation efficiency can be improved. A metal air pipe 113 is fixed to one side of the feed bin 110 away from the small bevel gear 122, the air pipe 113 is preferably a stainless steel pipe, and can also be a pipe made of other materials with excellent heat conduction performance. The air outlet end of the air pipe 113 extends into the feed bin 110, the air inlet end of the air pipe 113 is connected to the air outlet end of the heat conduction pipe 131, and the outer wall of the air pipe 113 is wrapped with an electric heating wire. The electric heating wire is fixed to the outer wall of the air pipe 113. The electric heating wire generates heat energy after being electrified, so that the temperature inside the air pipe 113 rises. The heat generated by the driving motor 121 during heat dissipation can accelerate the heating efficiency in the air pipe 113, while reducing heat loss. The electric heating wire is wrapped with ceramic fiber cotton, which concentrates heat in the air pipe 113. The ceramic fiber cotton has high high-temperature resistance, can prevent burns and ensure safety, and can significantly improve heating efficiency and save electricity. A movable shaft 111 is rotatably connected in the feed bin 110, the small bevel gear 122 is used to drive the movable shaft 111 to rotate, a plurality of uniformly distributed beating plates 112 are fixed to the side surface of the movable shaft 111, the beating plates 112 are used to increase the contact force of the bentonite particles, and the clumped bentonite particles are beaten apart. A feeding port is fixed to the feed bin 110, and the beating plates 112 are located below the feeding port. After the bentonite particles enter the feed bin 110 uniformly from the feeding port, they can be in contact with the beating plates 112 as soon as possible. A rotating shaft 151 is movably connected inside the grinding box 100, the large bevel gear 123 is used to drive the rotating shaft 151 to rotate, and the gear modulus of the large bevel gear 123 is the same as that of the small bevel gear 122. The free end of the rotating shaft 151 is fixed with a grinding ball 150 for grinding bentonite particles, and a fixed seat 170 is arranged below the grinding ball 150 and fixed in the grinding box 100, and a grinding gap is left between the grinding ball 150 and the fixed seat 170, and the bentonite particles can enter the grinding gap. The driving assembly 120 is used to drive the rotating shaft 151 and the movable shaft 111 to rotate simultaneously.

[0021] It should be noted that the gear ratio of the large tooth gear 123 and the small tooth gear 122 is 1:5, which can ensure that the low-speed grinding of the grinding ball 150 and the high-speed crushing of the breaking plate 112 are realized simultaneously.

[0022] In the above embodiment, the driving motor 121 drives the large tooth gear 123 to rotate, thereby driving the grinding ball 150 to perform grinding action, and the small tooth gear 122 rotates synchronously and drives the movable shaft 111 to rotate, and the breaking plate 112 rotates at high speed to break and scatter the lumps of material, and the exhaust pump draws the heat at the heat dissipation port of the driving motor 121 into the air pipe 113, and the heating wires on the outer wall of the air pipe 113 generate heat energy when electrified, and the gas flows into the feeding bin 110, which can realize synchronous operation of material grinding and crushing, reduce the driving source, reasonably utilize the heat generated during heat dissipation of the driving motor 121, accelerate heat dissipation, dry the material particles, and improve the efficiency of material grinding.

[0023] In some embodiments of the present application, as shown in Figures 1 to 9 The movable shaft 111 is a hollow cylinder with a rectangular slot on the side surface, the air outlet end of the air pipe 113 extends into the movable shaft 111, the extension end of the air pipe 113 abuts against the inner wall of the movable shaft 111, the connection between the movable shaft 111 and the air pipe 113 is rotationally sealed, and the air pipe 113 remains unchanged when the movable shaft 111 rotates, and the breaking plate 112 is a hollow rectangular plate with an opening on one side close to the rectangular slot; The opening of the breaking plate 112 coincides with the rectangular slot, the breaking plate 112 and the movable shaft 111 are in communication, the connection between the breaking plate 112 and the movable shaft 111 is airtight, and a plurality of air outlet holes are formed on both sides of the long side of the breaking plate 112, hot air is sent out of the air outlet holes, dry gas is conveyed into the feeding bin 110, and the air outlet holes of the breaking plate 112 output hot air, and when the material particles contact the breaking plate 112, the water on the surface of the material particles can be taken away, and the material particles are exposed after being broken by the breaking plate 112, and the material particles are dried again.

[0024] It should be noted that the air pipe 113 continuously ventilates inside the movable shaft 111, and the material cannot enter the air pipe 113. If the material enters the inside of the movable shaft 111, the material particles can be thrown out of the air outlet hole with the rotation of the movable shaft 111, and the thrown material particles are relatively dry. When thrown out, the collision force generated by the instantaneous contact with the material particles in the feed bin 110 is large, which can further crush the material particles and reduce the aggregation of the material particles.

[0025] Specifically, as shown in Figures 6 to 8 The inside top of the grinding box 100 is fixed with a material guide cover 115. The material guide cover 115 is a hollow inverted cone with both ends open, and the end close to the feed bin 110 extends into the feed bin 110. The material guide cover 115 is in communication with the inside of the feed bin 110. The end of the material guide cover 115 away from the feed bin 110 is fixed with a feeding cylinder 116. The discharge end of the feeding cylinder 116 is located above the grinding ball 150. The air pipe 113 is fixed with a branch pipe 114. The branch pipe 114 is in communication with the inside of the air pipe 113, and the free end of the branch pipe 114 extends into the feeding cylinder 116.

[0026] It is easy to understand that the material falls onto the grinding ball 150 along the feeding cylinder 116 after being crushed by the dispersing plate 112. The hot air in the air pipe 113 enters the feeding cylinder 116 through the branch pipe 114 to dry the falling material particles again, ensuring the fineness of the material particles.

[0027] Specifically, as shown in Figure 8 and Figure 9 The inner wall of the feeding cylinder 116 is fixed with a breathable mesh 1161. The breathable mesh 1161 is a ring-shaped metal soft mesh, and both ends thereof are fixed on the feeding cylinder 116 through a hard mesh. That is, the breathable mesh 1161 is supported by the hard mesh, and the hard mesh will not deform. The breathable mesh 1161 will shake under the influence of the airflow. The breathable mesh 1161 and the feeding cylinder 116 are left with an air inlet gap, and the free end of the branch pipe 114 extends into the air inlet gap. The breathable mesh 1161 is uniformly distributed with a plurality of resistance balls 1162 away from the feeding cylinder 116. Each resistance ball 1162 is fixed on the breathable mesh 1161 by a metal wire.

[0028] It should be noted that the mesh hole diameter of the breathable mesh 1161 is smaller than the particle size of the bentonite particles. The hot air passing through the mesh hole of the breathable mesh 1161 dries the bentonite particles. At the same time, the airflow drives the breathable mesh 1161 to shake, so that the resistance balls 1162 jump on the breathable mesh 1161, repeatedly hit the bentonite particles passing through the feeding cylinder 116, break part of the bentonite particles, reduce the subsequent grinding burden, and improve the grinding efficiency.

[0029] Specifically, as shown in Figures 2 to 6 The grinding ball 150 is a semispherical ball, and its end face is an arc face, facilitating the material to fall into the guide hole 152. The grinding ball 150 is internally provided with the guide hole 152, and the bentonite particles enter the grinding gap from the guide hole 152. The fixed seat 170 is a semispherical plate internally hollowed and open at one end close to the grinding ball 150, and the open end is fixed with an overflow plate 171. The overflow plate 171 is an arc plate, and its height is lower than that of the end of the grinding ball 150.

[0030] It is easy to understand that the grinding ball 150 continuously grinds the bentonite particles when rotating. Under the action of centrifugal force, the particles crushed by rolling are thrown to the edge of the grinding ball 150, and the powder continuously moves and falls on the overflow plate 171.

[0031] Specifically, as shown in Figures 4 to 6 The overflow plate 171 is provided below with a jet plate 180 for spraying hot gas. The overflow plate 171 is provided with a plurality of arc-shaped reserved slots 172, and the jet end of the jet plate 180 is located below the reserved slots 172. The gas delivery pipe 160 is fixed on the breather pipe 113. The gas inlet end of the gas delivery pipe 160 extends into the breather pipe 113. The breather pipe 113 and the gas delivery pipe 160 are internally communicated. The gas outlet end of the gas delivery pipe 160 extends into the jet plate 180. Hot gas is sent into the jet plate 180 through the gas delivery pipe 160. The airflow sprayed by the jet plate 180 passes through the reserved slots 172 to lift the powder. The contact area of the lifted powder particles with the hot gas is larger.

[0032] It should be noted that the jet plate 180 continuously sprays hot gas flow. The ground powder falls on the overflow plate 171. The airflow sprayed by the jet plate 180 lifts the powder. The smaller the particle size of the powder, the higher the lifting height. The powder is separated while the large particle size particles are dried, the brittleness of the particles is increased, and the grinding efficiency is improved.

[0033] Specifically, as shown in Figures 2 to 6 The rotating shaft 151 is fixed with a screening seat 191. The screening seat 191 is a hollow annular body provided with a long strip-shaped sieve hole on the side face. The screening seat 191 rotates with the rotation of the rotating shaft 151. The screening seat 191 is fixed with a breather ring 1911 at the top. The breather ring 1911 is a hollow annular pipe provided with openings at both ends. The inside top of the grinding box 100 is provided with an annular groove. One end of the breather ring 1911 extends into the annular groove, and the other end of the breather ring 1911 extends into the screening seat 191. The feeding pipe 190 is fixed on the top of the grinding box 100, and a feeding pump is fixed on the feeding pipe 190. The feeding pump is fixed on the side of the grinding box 100. The powder in the screening seat 191 is sucked into the feeding pipe 190 through the feeding pump. The feeding end of the feeding pipe 190 extends into the ventilation ring 1911. The collecting box 140 is positioned at the bottom of the grinding box 100. The collecting box 140 is used for collecting the ground powder. The movable door is movably connected to the side of the grinding box 100 close to the collecting box 140. The movable door of the grinding box 100 is directly opened when the collecting box 140 is saturated. The collecting box 140 can be taken out. The discharging end of the feeding pipe 190 is located above the collecting box 140.

[0034] It is easy to understand that the ground powder enters the screening seat 191, is sent into the collecting box 140 through the feeding pipe 190, and is convenient for collecting the ground powder.

[0035] On the basis of the above embodiment, the dry air in the ventilation pipe 113 enters the movable shaft 111 and overflows through the air outlet hole. When the material particles contact the dispersing plate 112, the water on the surface of the material particles can be taken away. After being dispersed by the dispersing plate 112, the inside of the material particles is exposed. The inside of the material particles is dried again. The dried material particles enter the feeding cylinder 116 along the guide cover 115. The dry air is transported in the feeding cylinder 116 through the branch pipe 114 to further dry the material particles. The dried material particles fall on the grinding ball 150 and enter the grinding gap from the guide hole 152 along the arc surface of the grinding ball 150. The grinding of the material particles starts. Under the action of the centrifugal force, the particles crushed by the rolling pressure are thrown to the edge of the grinding ball 150 and enter the overflow plate 171. At the same time, the air supply pipe 160 sends dry air from the air jet plate 180 and sprays it through the air jet plate 180. The powder particles in the overflow plate 171 are lifted. The powder particles entering the screening seat 191 are sucked into the collecting box 140 through the feeding pipe 190, so as to realize the screening of the material particles and increase the contact area of the dry air and the material particles, thereby improving the grinding efficiency of the material.

[0036] As shown in some embodiments of the present application, Figures 2 to 9 The air jet plate 180 is a hollow inverted cone ring, and the airflow sprayed by the air jet plate 180 is inclined towards the screening seat 191. That is, the powder with a larger particle size can fall on the grinding ball 150 again, so as to facilitate the repeated grinding of the particles that do not meet the requirements.

[0037] It should be noted that the qualified powder particles after grinding are between 62 μm and 74 μm. The screening seat 191 can screen the powder particles with a particle size less than or equal to 74 μm.

[0038] Specifically, as shown in Figures 2 to 6As shown, the air inlet end of the air feeding pipe 160 is fixed with an air pump, the air pump is fixed on the side of the grinding box 100, the air inlet end of the air pump is fixed with an air suction pipe 161, one end of the air suction pipe 161 extends into the grinding box 100, and the extending end of the air suction pipe 161 is located above the overflow plate 171, and the powder particles sucked by the air suction pipe 161 are mostly large-diameter particles.

[0039] It should be noted that the space above the grinding ball 150 has more heat, and the negative pressure in the air suction pipe 161 can be increased by the air pump, so that the hot air in the grinding box 100 can be sucked into the air feeding pipe 160, and the hot air in the grinding box 100 contains powder particles, and the hot air flow with powder particles input into the air jet plate 180 through the air feeding pipe 160, which can not only dry the material particles, but also further crush the material particles.

[0040] Specifically, as shown in the figure, Figures 6 to 8 As shown, the side of the grinding box 100 close to the material guide cover 115 is fixed with an arc-shaped side plate 1001, the side plate 1001 is located above the overflow plate 171, and the inner side of the side plate 1001 is uniformly and spacedly fixed with crushing blocks 1002, the crushing blocks 1002 are irregular blocks, and are used to increase the contact force with the material particles.

[0041] It should be noted that the raised material particles are screened by the screening seat 191, the larger particle size material particles fall into the material guide hole 152 by their own gravity, and a small amount of material particles splash in the direction of the side plate 1001 under the action of centrifugal force generated when the screening seat 191 rotates, and then rebound onto the grinding ball 150 or the overflow plate 171 after passing through the crushing blocks 1002. When the splashing material particles contact the crushing blocks 1002, a large shear force is generated, further crushing and grinding the material particles.

[0042] On the basis of the above embodiment, the air containing powder particles is sent into the air feeding pipe 160 by the air pump to the air suction pipe 161, so that the air jet plate 180 sprays dry air containing powder particles, which can increase the contact force between the dry air and the material particles. Large-diameter material particles are intercepted outside the screening seat 191, part of the large-diameter material particles fall onto the grinding ball 150 by their own gravity, and part of the large-diameter material particles are thrown to the crushing blocks 1002 of the side plate 1001 by centrifugal force, and then rebound onto the grinding ball 150 after passing through the crushing blocks 1002. Repeated collisions can better crush the material particles, and can realize grinding and crushing of the material particles at the same time, thereby improving the grinding efficiency of the material particles.

[0043] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0044] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An energy-saving electric grinding device for plugging agent production, comprising a grinding box and a feed bin, characterized in that: Also included are drive components; The driving assembly includes a support frame, a driving motor, a small bevel gear and a large bevel gear; The end of the driving motor is provided with a heat dissipation port, a heat absorption cover is provided above the heat dissipation port, and a heat pipe is fixed to the end of the heat absorption cover away from the driving motor; A metal vent pipe is fixed on one side of the feed bin, the air inlet end of the vent pipe is connected to the air outlet end of the heat conduction pipe, and the outer wall of the vent pipe is wrapped with a heating wire, and the outside of the heating wire is wrapped with ceramic fiber cotton; A movable shaft is rotatably connected in the feed bin, and a plurality of evenly distributed scattering plates are fixed on the side of the movable shaft; The grinding box is movably connected to a rotating shaft, a grinding ball is fixed to the free end of the rotating shaft, a fixing seat is provided below the grinding ball, and a grinding gap is left between the grinding ball and the fixing seat; The driving assembly is used to drive the rotating shaft and the movable shaft to rotate simultaneously.

2. The energy-saving electric grinding device for plugging agent production according to claim 1, characterized in that: The movable shaft is a cylindrical body with a hollow interior and a rectangular groove on the side. The air outlet end of the vent pipe extends into the movable shaft. The scattering plate is a rectangular plate with a hollow interior and an opening on one side close to the rectangular groove. The opening of the scattering plate coincides with the rectangular groove, and a plurality of air outlet holes are provided on both sides of the long side of the scattering plate.

3. The energy-saving electric grinding device for plugging agent production according to claim 1, characterized in that: A material guide cover is fixed on the top of the grinding box. The material guide cover is an inverted cone with a hollow interior and open ends, and one end of the material guide cover close to the feed bin extends into the feed bin. A feeding cylinder is fixed to one end of the material guide cover away from the feed bin, and the discharge end of the feeding cylinder is located above the grinding balls; A branch pipe is fixed on the vent pipe, the branch pipe is communicated with the interior of the vent pipe, and the free end of the branch pipe extends into the feeding barrel.

4. The energy-saving electric grinding device for plugging agent production according to claim 3 is characterized in that: The inner wall of the feeding barrel is fixed with a breathable net, which is a ring-shaped soft metal net, and its two ends are fixed to the feeding barrel through hard nets; An air intake gap is left between the air permeable net and the feeding cylinder, and the free end of the branch pipe extends into the air intake gap; A plurality of resistance balls are evenly distributed on the air-permeable net away from the feeding cylinder, and each resistance ball is fixed to the air-permeable net by a metal wire.

5. The energy-saving electric grinding device for plugging agent production according to claim 1, characterized in that: The grinding ball is a semi-spherical ball with an arc-shaped end surface. A material guide hole is provided inside the grinding ball, and the bentonite particles enter the grinding gap through the material guide hole. The fixing seat is a semi-circular spherical plate with a hollow interior and an opening at one end close to the grinding ball, and an overflow plate is fixed to the open end thereof. The overflow plate is an arc-shaped plate and its height is lower than the end of the grinding ball.

6. The energy-saving electric grinding device for plugging agent production according to claim 5, characterized in that: A jet plate is provided below the overflow plate for ejecting hot air. The overflow plate is provided with a plurality of arc-shaped reserved slots, and the jet end of the jet plate is located below the reserved slots. An air supply pipe is fixed on the ventilation pipe, an air inlet end of the air supply pipe extends into the ventilation pipe, and an air outlet end of the air supply pipe extends into the jet plate.

7. The energy-saving electric grinding device for plugging agent production according to claim 1 is characterized in that: A screening seat is fixed on the rotating shaft, and the screening seat is a circular body with a hollow interior and long strip-shaped sieve holes on the side; A ventilation ring is fixed on the top of the screening seat, and the ventilation ring is an annular tube with a hollow interior and openings at both ends; An annular groove is provided on the top of the grinding box, one end of the ventilation ring extends into the annular groove, and the other end of the ventilation ring extends into the screening seat; A feed pipe is fixed on the top of the grinding box, a feed pump is fixed on the feed pipe, the feed end of the feed pipe extends into the ventilation ring, a collection box is positioned at the bottom of the grinding box, and the discharge end of the feed pipe is located above the collection box.

8. The energy-saving electric grinding device for plugging agent production according to claim 6, characterized in that: The air jet plate is an inverted conical ring with a hollow interior, and the air jetted therefrom is inclined toward the screening seat.

9. The energy-saving electric grinding device for plugging agent production according to claim 6, characterized in that: An air pump is fixed to the air inlet end of the air supply pipe, and an air suction pipe is fixed to the air inlet end of the air pump. One end of the air suction pipe extends into the grinding box, and the extending end of the air suction pipe is located above the overflow plate.

10. The energy-saving electric grinding device for plugging agent production according to claim 1, characterized in that: An arc-shaped side plate is fixed on the side of the grinding box close to the material guide cover, and crushing blocks are fixed on the inner side of the side plate at even intervals.

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