Grinding device and method for producing anti-collapse agent for drilling fluid

Abstract

The invention discloses a grinding device and method for producing an anti-collapse agent for drilling fluid, and relates to the technical field of grinding devices. By arranging the anti-collapse agent grinding mechanism, when anti-collapse agent raw materials are ground, large anti-collapse agent particles can be ground through a coarse grinding roller firstly, and then fine anti-collapse agent particles subjected to preliminary grinding are ground again through a fine grinding roller; according to the grinding mode, the situation that an energy-saving motor is overloaded and damaged due to the fact that the large-particle anti-collapse agent is clamped between the grinding plate and the grinding roller is avoided, the coarse grinding roller can rapidly crush the large-particle anti-collapse agent, and therefore grinding and crushing operation of the fine grinding roller is more convenient, the grinding and forming speed of the anti-collapse agent can be increased, and the quality of the anti-collapse agent is improved. And the material distribution assembly can release anti-collapse agent raw materials at a constant speed through an auger, the situation that the anti-collapse agent raw materials are accumulated on the grinding plate in a concentrated mode, and consequently the anti-collapse agent cannot be evenly ground is avoided, and the grinding and crushing speed of the anti-collapse agent is increased.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a grinding device and method for producing an anti-collapse agent for drilling fluid. Background Art

[0002] Anti-collapse agents are treatment agents that can inhibit the hydration, expansion and dispersion of shale, increase the contact area between the drilling fluid and the well wall, improve the adhesion of the drilling fluid on the well wall, and enable the drilling fluid to form a solid film layer on the well wall, effectively preventing the collapse and damage of the well wall and formation.

[0003] In order to dissolve or disperse the anti-collapse agent raw material in the drilling fluid faster, improve the uniformity of the anti-collapse agent in the drilling fluid, and enhance its interaction with the drilling fluid, it needs to be ground using a grinding device before being added to the drilling fluid to form finer particles.

[0004] A grinding device for producing anti-collapse agent for drilling fluid disclosed in the patent application with reference publication number CN221982628U can perform multiple grinding on the raw material of the anti-collapse agent for drilling fluid through the first grinding roller and the second grinding roller, and can screen unqualified materials through the screening plate, and can lift the screened unqualified materials to the inside of the grinding box again through the circulation mechanism, and grind them again to improve the grinding quality.

[0005] The grinding device for producing the anti-collapse agent in the above-mentioned prior art has the following defects in actual use:

[0006] 1) The above-mentioned anti-collapse agent grinding device crushes and grinds the anti-collapse agent raw material through the mutual squeezing action of two grinding rollers, and the spacing between the two grinding rollers is a fixed value, which can only produce anti-collapse agents of a single particle size, and cannot grind anti-collapse agents of different particle sizes according to actual needs. The use function is single, and the extrusion channel formed between the two grinding rollers is linear, so that the residence time of the anti-collapse agent raw material between the grinding rollers is short, resulting in the anti-collapse agent raw material being discharged before being fully ground. The long-term repeated grinding method will cause part of the anti-collapse agent raw material to be over-ground while part of the anti-collapse agent raw material is still under-ground, affecting the quality of the final product;

[0007] 2) When the anti-collapse agent raw materials are concentratedly fed into the anti-collapse agent grinding device through the feed hopper, the anti-collapse agent raw materials are accumulated above the grinding roller under the action of gravity. Since the initial anti-collapse agent raw materials have a large particle size, they are easily stuck between the two grinding rollers, causing the grinding rollers to be unable to rotate normally, thereby causing the drive motor to be damaged due to overload;

[0008] Therefore, the present invention proposes a grinding device and method for producing an anti-collapse agent for drilling fluid to solve the above-mentioned problems. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides a grinding device and method for producing an anti-collapse agent for drilling fluid, which solves the problem that the spacing between the two grinding rollers in the existing anti-collapse agent grinding device is a fixed value, and only anti-collapse agents of a single particle size can be ground, and anti-collapse agents of different particle sizes cannot be ground according to actual needs, resulting in a single function of use. In addition, the extrusion channel formed between the two grinding rollers is linear, so that the residence time of the anti-collapse agent raw material between the grinding rollers is short, resulting in the anti-collapse agent raw material being discharged without being fully ground. The long-term repeated grinding method will cause part of the anti-collapse agent raw material to be over-ground while part of the anti-collapse agent raw material is still under-ground. In addition, the anti-collapse agent raw material is easily accumulated above the grinding roller under the action of gravity, and is very likely to be stuck between the two grinding rollers, causing the grinding roller to be unable to rotate normally, thereby causing the drive motor to be damaged due to overload.

[0010] To achieve the above purpose, the present invention is implemented by the following technical scheme: a grinding device for producing an anti-collapse agent for drilling fluid, comprising:

[0011] The anti-collapse agent grinding mechanism is arranged on the ground and connected to the ground by bolts, and is used for grinding the anti-collapse agent into anti-collapse agent powders with different particle sizes according to the use environment requirements of the anti-collapse agent;

[0012] The anti-collapse agent grinding mechanism comprises a grinding disc assembly, a protective tube assembly, a roller assembly and a material distribution assembly. The material distribution assembly evenly distributes the anti-collapse agent raw material on the top of the grinding disc assembly, and then the roller assembly performs two grinding operations, namely, rough grinding and fine grinding. The height of the roller assembly from the top of the grinding disc assembly is adjusted to adapt to the grinding of anti-collapse agent particles of different particle sizes.

[0013] A raw material conveying pipe is arranged on the outer wall of the anti-collapse agent grinding mechanism and is used to convey raw materials for the production of the anti-collapse agent;

[0014] A screening mechanism is arranged on the top of the anti-collapse agent grinding mechanism and connected to the anti-collapse agent grinding mechanism through a flange, and is used to screen the anti-collapse agent particles that do not meet the particle size requirements and push the anti-collapse agent particles toward the anti-collapse agent grinding mechanism, so as to cooperate with the anti-collapse agent grinding mechanism to form anti-collapse agent powder particles that meet the particle size requirements;

[0015] The powder output pipe is connected to the top of the screening mechanism through a No. 2 flange and is used to transport the qualified anti-collapse agent powder to an external collection device for storage.

[0016] Furthermore, an inspection port for conveniently adjusting different screening particle sizes is provided on one side of the outer wall of the screening mechanism, and a protective plate for sealing the inspection port is detachably provided inside the inspection port.

[0017] Furthermore, the grinding disc assembly includes an energy-saving motor protective cylinder and a grinding cylinder fixedly arranged on the top of the energy-saving motor protective cylinder, an energy-saving motor is fixedly arranged inside the energy-saving motor protective cylinder, the output shaft of the energy-saving motor rotates through the grinding cylinder and extends into the interior of the grinding cylinder, and a carrying disc is rotatably arranged inside the grinding cylinder, a plurality of grinding plates are detachably arranged on the top of the carrying disc, the circular structure formed between the plurality of grinding plates can completely cover the top of the carrying disc, and the output shaft of the energy-saving motor is connected to the bottom of the carrying disc.

[0018] Furthermore, the protective cylinder assembly includes a cylinder body connected to the top of the energy-saving motor protective cylinder by bolts, and a No. 1 lifting groove is opened at the relative positions on both sides of the inside of the cylinder body, and a No. 2 lifting groove connected to the No. 1 lifting groove at the corresponding position is opened at the relative positions on both sides of the inner wall of the cylinder, and a No. 3 lifting groove connected to the No. 1 lifting groove at the corresponding position is opened at the relative positions on both sides of the outer wall of the cylinder.

[0019] Furthermore, air heating components for providing heat for the anti-collapse agent grinding process are arranged on both sides of the outer wall of the cylinder to dry the anti-collapse agent powder particles after grinding. The air heating components include a heating box detachably arranged on the outer wall of the cylinder, and an air inlet and an exhaust port are respectively opened on both sides of the outer wall of the heating box, and an electric heating wire is also fixedly arranged inside the heating box, and an air supply pipe for transporting heat to the top of the grinding plate is fixedly arranged inside the exhaust port.

[0020] Further, the rolling assembly includes a sliding sleeve, and lifting plates are fixedly arranged on both sides of the outer wall of the sliding sleeve through support arms, and an electric push rod is arranged on one side of each lifting plate, and the output end of the electric push rod is fixedly connected to the outer wall of the lifting plate, and the electric push rod is fixedly arranged on the outer wall of the cylinder;

[0021] A plurality of grinding execution units are evenly arranged on the outer wall of the sleeve, and the grinding execution unit includes a hanging arm detachably arranged on the outer wall of the sleeve, and a rotating shaft is fixedly arranged on the side wall of the hanging arm away from the sleeve, and a coarse grinding roller and a fine grinding roller are rotatably sleeved on the outer wall of the rotating shaft.

[0022] Furthermore, the material distribution assembly includes a material distribution cylinder detachably arranged on the top of multiple grinding plates, a conical disk is rotatably arranged at the lower part of the material distribution cylinder, and an auger for pushing down the anti-collapse agent is rotatably arranged on the top of the conical disk. Multiple raw material release ports are evenly opened around the outer wall of the material distribution cylinder and above the conical disk, and a discharge nozzle is fixedly arranged inside each raw material release port.

[0023] Further, the screening mechanism comprises a blocking tube fixedly connected to the top of the cylinder, a filter cartridge assembly for screening unqualified anti-collapse agent particles and allowing qualified anti-collapse agent particles to pass is arranged inside the blocking tube, a cover plate is fixedly arranged on the top of the filter cartridge assembly, and an annular blocking plate for only allowing anti-collapse agent particles to enter the interior of the filter cartridge assembly from the bottom of the filter cartridge assembly is fixedly arranged between the bottom of the filter cartridge assembly and the inner wall of the blocking tube;

[0024] A cleaning assembly for cleaning the inner wall of the filter cartridge assembly is also provided inside the filter cartridge assembly, and the cleaning assembly includes a transmission shaft rotatably arranged inside the filter cartridge assembly through a bracket, a spiral scraper is fixedly arranged on the outer wall of the transmission shaft through a connecting rod, a plurality of bristles are evenly and fixedly arranged on the outer wall of the spiral scraper, and one end of the bristles away from the transmission shaft abuts against the inner wall of the filter cartridge assembly, the top end of the transmission shaft rotates through the cover plate and is fixedly provided with fan blades, and a Laval tube is fixedly arranged on the inner wall of the blocking tube and above the cover plate, and an axial flow fan is fixedly arranged on the top of the Laval tube.

[0025] Further, the filter cartridge assembly includes two fine filter pore areas, two coarse filter pore areas and two medium filter pore areas uniformly opened on the outer wall of the filter cartridge, and the two fine filter pore areas, two coarse filter pore areas and two medium filter pore areas are all symmetrically arranged relative to the center of the filter cartridge;

[0026] An outer cylinder is rotatably sleeved on the outer wall of the filter cylinder, and discharge ports are provided on both sides of the outer wall of the outer cylinder. Each discharge port can cover one of the fine filter hole areas, the coarse filter hole area or the medium filter hole area, and a No. 1 paddle, a No. 2 paddle and a No. 3 paddle are evenly arranged below the outer wall of the outer cylinder. A marking groove for marking the position of the No. 1 paddle, the No. 2 paddle or the No. 3 paddle is also provided on the outer wall of the filter cylinder.

[0027] The present invention also discloses a grinding method for producing an anti-slumping agent for drilling fluid, and a grinding device for producing an anti-slumping agent for drilling fluid. The method comprises the following steps:

[0028] Step 1: The anti-collapse agent raw material is input into the distribution component in the anti-collapse agent grinding mechanism through the raw material conveying pipe. After being evenly distributed by the distribution component, the anti-collapse agent raw material is evenly distributed around the top of the grinding disc component;

[0029] Step 2, the grinding disc assembly drives the anti-collapse agent raw materials distributed on the top thereof to rotate together, and the anti-collapse agent raw materials move from the center position of the top of the grinding disc assembly to the edge position under the action of centrifugal force. In this process, the roller pressing assembly performs coarse grinding and fine grinding operations on the anti-collapse agent raw materials respectively;

[0030] Step 3: The powder particles formed by grinding are sucked upward by the screening mechanism, and the qualified anti-collapse agent raw materials are discharged through the powder output pipe, and the unqualified anti-collapse agent raw materials are blocked and ground again.

[0031] The present invention provides a grinding device and method for producing an anti-collapse agent for drilling fluid. Compared with the prior art, it has the following beneficial effects:

[0032] 1. A grinding device and method for producing an anti-collapse agent for drilling fluid. By setting up an anti-collapse agent grinding mechanism, the coarse grinding roller can be used to grind the larger anti-collapse agent particles when grinding the anti-collapse agent raw materials, and then the fine grinding roller can be used to grind the finer anti-collapse agent particles that have been initially ground again. This grinding method not only avoids the situation where large particles of anti-collapse agent are stuck between the grinding plate and the grinding roller, causing the energy-saving motor to be overloaded and damaged, but the coarse grinding roller can quickly crush the large particles of anti-collapse agent, thereby making the grinding and crushing operation of the fine grinding roller more convenient, which is beneficial to speeding up the grinding and forming speed of the anti-collapse agent and improving the grinding efficiency.

[0033] 2. A grinding device and method for producing an anti-collapse agent for drilling fluid. By setting a distribution component, the anti-collapse agent raw material can be released at a uniform speed through an auger, so that the amount of anti-collapse agent raw material entering the grinding plate per unit time is a fixed value, and is evenly distributed around the top of the grinding plate through a discharge nozzle, thereby avoiding the situation where the anti-collapse agent raw material is concentrated on the grinding plate and the anti-collapse agent cannot be evenly ground. The evenly distributed anti-collapse agent raw material can be evenly crushed and ground by the grinding roller during the rotation of the grinding plate, thereby accelerating the speed at which the anti-collapse agent is ground and crushed, so that the energy-saving motor is always in a relatively stable load, which is beneficial to extending the service life of the energy-saving motor, and the operation of the distribution component and the operation of the grinding disc component simultaneously utilize the same energy-saving motor, without the need to set up multiple drive motors, making the anti-collapse agent production process more energy-saving and environmentally friendly, and the energy-saving motor consumes less energy during operation, thereby reducing the cost of use.

[0034] 3. A grinding device and method for producing an anti-collapse agent for drilling fluid, wherein a roller pressing assembly is arranged, wherein the coarse grinding roller inside the roller pressing assembly is arranged close to the material distributing assembly and the fine grinding roller is arranged far away from the material distributing assembly, so that the anti-collapse agent raw material released from the material distributing assembly can first be contacted and ground with the coarse grinding roller, so that the large particles of the anti-collapse agent raw material can be quickly crushed, and the anti-collapse agent raw material after the initial crushing can move to a position away from the center of the material distributing assembly under the centrifugal force of the grinding disc assembly, so that the anti-collapse agent raw material can meet the fine grinding roller again, so that the fine grinding roller can perform secondary fine grinding on the anti-collapse agent raw material again, thereby improving the grinding accuracy of the anti-collapse agent, and the anti-collapse agent particles are evenly distributed on the grinding plate, and the coarse grinding roller and the fine grinding roller can continuously contact the anti-collapse agent raw material, thereby increasing the grinding time, so that the particle size of most of the anti-collapse agent particles sucked upward by the axial flow fan can meet the use requirements, thereby reducing the probability of the anti-collapse agent particles being ground again, and ensuring that the anti-collapse agent particles will not reduce their own quality due to excessive grinding;

[0035] The coarse grinding roller and the fine grinding roller in the rolling assembly can adjust the height from the grinding plate according to usage requirements, thereby controlling the grinding accuracy of the coarse grinding roller and the fine grinding roller on the anti-collapse agent raw material, which can meet the production of anti-collapse agents of different particle sizes and improve practicality.

[0036] 4. A grinding device and method for producing an anti-collapse agent for drilling fluid. By setting a screening mechanism, the fine filter hole area, the coarse filter hole area, or the medium filter hole area can be adjusted according to the demand for the particle size of the anti-collapse agent particles to participate in the work of filtering the anti-collapse agent particles, so that only the anti-collapse agent particles that meet the particle size requirements can pass through the screening mechanism, and the anti-collapse agent particles that do not meet the requirements will be scraped again by the spiral scraper onto the grinding plate to participate in grinding again, and the filtering capacity of the fine filter hole area, the coarse filter hole area, or the medium filter hole area can be used in conjunction with a roller pressing component, that is, each grinding precision in the roller pressing component has a unique fine filter hole area, coarse filter hole area, or medium filter hole area corresponding to it, so that the anti-collapse agent particles ground by the roller pressing component under a certain grinding precision can pass through the fine filter hole area, the coarse filter hole area, or the medium filter hole area that matches it, so that anti-collapse agent particles of different particle sizes can be produced to meet different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0039] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0040] Figure 4 This is a schematic structural diagram of the powder material output pipe and the screening mechanism of the present invention in a first assembly state;

[0041] Figure 5 This is a schematic diagram of the structure of the powder output pipe and the screening mechanism of the present invention in the second assembly state;

[0042] Figure 6 It is a schematic cross-sectional structural diagram of the screening mechanism of the present invention;

[0043] Figure 7 It is a schematic structural diagram of the anti-collapse agent grinding mechanism and the raw material conveying pipe in the assembly state of the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of the anti-collapse agent grinding mechanism in a decomposed state of the present invention;

[0045] Fig. 9 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A;

[0046] Fig.10 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A;

[0047] Fig.11 It is a schematic structural diagram of the anti-collapse agent grinding mechanism and the air heating component in the assembly state of the present invention;

[0048] Fig.12 This is a schematic diagram of the structure of the grinding disc assembly of the present invention in a disassembled state;

[0049] Fig.13 It is a schematic diagram of the structure of the roller pressing assembly of the present invention;

[0050] Fig.14 This is a schematic diagram of a first cross-sectional structure of a fabric assembly of the present invention;

[0051] Fig.15 It is a second cross-sectional structural schematic diagram of the fabric assembly of the present invention;

[0052] Fig.16 It is a schematic diagram of the structure of the filter cartridge assembly of the present invention;

[0053] Fig.17 For the present invention Fig.16 A schematic diagram of the enlarged structure of part C in FIG.

[0054] Fig.18 It is a schematic diagram of the structure of the filter cartridge assembly of the present invention in a disassembled state.

[0055] In the figure: 1. Anti-collapse agent grinding mechanism; 11. Grinding disc assembly; 111. Energy-saving motor protection tube; 112. Grinding cylinder; 113. Energy-saving motor; 114. Carrying plate; 115. Grinding plate; 12. Cylinder; 13. No. 1 lifting slot; 14. No. 2 lifting slot; 15. No. 3 lifting slot; 16. Air heating assembly; 161. Heating box; 162. Air pipe; 17. Roller assembly; 171. Sliding sleeve; 172. Support arm; 173. Lifting plate; 174. Electric push rod; 175. Hanging arm; 176. Rotating shaft; 177. Coarse grinding roller; 178. Fine grinding roller; 18. Cloth assembly; 181. Feeding cylinder; 182, conical disc; 183, auger; 184, discharge nozzle; 2, raw material conveying pipe; 3, screening mechanism; 31, blocking pipe; 32, filter cartridge assembly; 321, filter cartridge; 322, fine filter hole area; 323, coarse filter hole area; 324, medium filter hole area; 325, outer cylinder; 326, discharge port; 327, No. 1 paddle; 328, No. 2 paddle; 329, No. 3 paddle; 3210, marking groove; 33, cover plate; 34, annular blocking plate; 35, transmission shaft; 36, spiral scraper; 37, fan blade; 38, Laval tube; 39, axial flow fan; 4, powder output pipe; 5, inspection port. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The present invention provides three technical solutions: a grinding device for producing an anti-collapse agent for drilling fluid, specifically including the following embodiments:

[0058] like Figure 1-Figure 3 The first embodiment is shown: a grinding device for producing an anti-collapse agent for drilling fluid, comprising:

[0059] The anti-collapse agent grinding mechanism 1 is arranged on the ground and connected to the ground by bolts, and is used to grind the anti-collapse agent into anti-collapse agent powders of different particle sizes according to the use environment requirements of the anti-collapse agent;

[0060] The anti-collapse agent grinding mechanism 1 comprises a grinding disc assembly 11, a protective cylinder assembly, a roller assembly 17 and a material distribution assembly 18. The protective cylinder assembly is arranged on the top of the grinding disc assembly 11, and the roller assembly 17 and the material distribution assembly 18 are both arranged inside the protective cylinder assembly. The material distribution assembly 18 evenly distributes the anti-collapse agent raw material on the top of the grinding disc assembly 11, and then the roller assembly 17 performs two grinding operations, namely, rough grinding and fine grinding. The height of the roller assembly 17 from the top of the grinding disc assembly 11 is adjusted to adapt to the grinding of anti-collapse agent particles of different particle sizes.

[0061] A raw material conveying pipe 2 is arranged on the outer wall of the anti-collapse agent grinding mechanism 1 and is used to convey raw materials for the production of the anti-collapse agent;

[0062] The screening mechanism 3 is arranged on the top of the anti-collapse agent grinding mechanism 1 and connected to the anti-collapse agent grinding mechanism 1 through a flange, and is used to screen the anti-collapse agent particles that do not meet the particle size requirements and push the anti-collapse agent particles toward the anti-collapse agent grinding mechanism 1, so as to cooperate with the anti-collapse agent grinding mechanism 1 to form anti-collapse agent powder particles that meet the particle size requirements;

[0063] The powder output pipe 4 is connected to the top of the screening mechanism 3 through the second flange, and is used to transport the qualified anti-collapse agent powder to an external collection device for storage;

[0064] An inspection port 5 for conveniently adjusting different screening particle sizes is also provided on one side of the outer wall of the screening mechanism 3 , and a protective plate for sealing the inspection port 5 is detachably provided inside the inspection port 5 .

[0065] like Figure 7-Figure 15A second embodiment is shown, in which the grinding disc assembly 11 includes an energy-saving motor protection cylinder 111 and a grinding cylinder 112 fixedly arranged on the top of the energy-saving motor protection cylinder 111, an energy-saving motor 113 is fixedly arranged inside the energy-saving motor protection cylinder 111, and the output shaft of the energy-saving motor 113 rotates through the grinding cylinder 112 and extends into the interior thereof, and a supporting disc 114 is rotatably arranged inside the grinding cylinder 112, and a plurality of grinding plates 115 are detachably arranged on the top of the supporting disc 114, and the circular structure formed between the plurality of grinding plates 115 can completely cover the top of the supporting disc 114, and the output shaft of the energy-saving motor 113 is connected to the bottom of the supporting disc 114.

[0066] The rolling assembly 17 includes a sliding sleeve 171, and lifting plates 173 are fixedly arranged on both sides of the outer wall of the sliding sleeve 171 through support arms 172, and an electric push rod 174 is arranged on one side of each lifting plate 173, and the output end of the electric push rod 174 is fixedly connected to the outer wall of the lifting plate 173, and the electric push rod 174 is fixedly arranged on the outer wall of the cylinder 12;

[0067] A plurality of grinding execution units are evenly arranged on the outer wall of the sliding sleeve 171, and the grinding execution units include a hanging arm 175 detachably arranged on the outer wall of the sliding sleeve 171, and a rotating shaft 176 is fixedly arranged on the side wall of the hanging arm 175 away from the sliding sleeve 171, and a coarse grinding roller 177 and a fine grinding roller 178 are rotatably sleeved on the outer wall of the rotating shaft 176. Two lifting plates 173 are respectively slidably arranged inside the No. 1 lifting slot 13 at two corresponding positions, and the No. 2 lifting slot 14 is used to provide space for the up and down movement of the support arm 172, and the No. 3 lifting slot 15 provides space for the output shaft of the electric push rod 174 at the corresponding position to rise and fall;

[0068] The material distributing assembly 18 includes a distributing cylinder 181 which is detachably mounted on the top of a plurality of grinding plates 115. A conical disk 182 is rotatably mounted at the bottom of the distributing cylinder 181. A screw 183 for pushing down the anti-collapse agent is rotatably mounted on the top of the conical disk 182. A plurality of raw material release ports are evenly arranged around the outer wall of the distributing cylinder 181 and above the conical disk 182. A discharge nozzle 184 is fixedly mounted inside each raw material release port. The sliding sleeve 171 is slidably mounted on the outer wall of the distributing cylinder 181. The output shaft of the energy-saving motor 113 passes through the bearing disk 114 and is fixedly connected to the bottom of the conical disk 182, so that the same energy-saving motor 113 can be used to simultaneously drive the bearing disk 114 and the conical disk 182 to rotate.

[0069] The protective cylinder assembly includes a cylinder body 12 connected to the top of the energy-saving motor protective cylinder 111 by bolts, and a No. 1 lifting groove 13 is opened at relative positions on both sides of the cylinder body 12, and a No. 2 lifting groove 14 connected to the No. 1 lifting groove 13 at the corresponding position is opened at relative positions on both sides of the inner wall of the cylinder body 12, and a No. 3 lifting groove 15 connected to the No. 1 lifting groove 13 at the corresponding position is opened at relative positions on both sides of the outer wall of the cylinder body 12.

[0070] Air heating components 16 are provided on both sides of the outer wall of the cylinder 12 for providing heat for the anti-collapse agent grinding process to dry the anti-collapse agent powder particles after grinding. The air heating component 16 includes a heating box 161 detachably arranged on the outer wall of the cylinder 12, and an air inlet and an exhaust port are respectively provided on both sides of the outer wall of the heating box 161, and an electric heating wire is also fixedly arranged inside the heating box 161, and an air supply pipe 162 for transporting heat to the top of the grinding plate 115 is fixedly arranged inside the exhaust port.

[0071] like Figure 4-Figure 6 , Figure 16-Figure 18 A third embodiment is shown, in which the screening mechanism 3 comprises a blocking tube 31 fixedly connected to the top of the cylinder 12, a filter cartridge assembly 32 for screening unqualified anti-collapse agent particles and allowing qualified anti-collapse agent particles to pass is arranged inside the blocking tube 31, a cover plate 33 is fixedly arranged on the top of the filter cartridge assembly 32, and an annular blocking plate 34 is fixedly arranged between the bottom of the filter cartridge assembly 32 and the inner wall of the blocking tube 31 for only allowing the anti-collapse agent particles to enter the inside of the filter cartridge assembly 32 from the bottom thereof;

[0072] The filter cartridge assembly 32 is also provided with a cleaning assembly for cleaning its inner wall. The cleaning assembly includes a transmission shaft 35 rotatably arranged inside the filter cartridge assembly 32 through a bracket. A spiral scraper 36 is fixedly arranged on the outer wall of the transmission shaft 35 through a connecting rod. A plurality of bristles are evenly fixedly arranged on the outer wall of the spiral scraper 36. The end of the bristles away from the transmission shaft 35 abuts against the inner wall of the filter cartridge assembly 32. The top end of the transmission shaft 35 rotates through the cover plate 33 and is fixedly provided with a fan blade 37. A Laval tube 38 is fixedly arranged on the inner wall of the blocking tube 31 and located above the cover plate 33. An axial flow fan 39 is fixedly arranged on the top of the Laval tube 38. The fan blade 37 is located above the inside of the Laval tube 38.

[0073] The filter cartridge assembly 32 includes two fine filter pore areas 322, two coarse filter pore areas 323 and two medium filter pore areas 324 uniformly arranged on the outer wall of the filter cartridge 321, and the two fine filter pore areas 322, the two coarse filter pore areas 323 and the two medium filter pore areas 324 are all symmetrically arranged relative to the center of the filter cartridge 321; one of the fine filter pore areas 322, the coarse filter pore area 323 and the medium filter pore area 324 is distributed in sequence along the outer wall of the filter cartridge 321, and the distribution area of ​​one fine filter pore area 322, one coarse filter pore area 323 or one medium filter pore area 324 occupies one sixth of the outer wall area of ​​the filter cartridge 321;

[0074] An outer cylinder 325 is rotatably sleeved on the outer wall of the filter cylinder 321, and discharge ports 326 are provided on both sides of the outer wall of the outer cylinder 325. Each discharge port 326 can cover one of the fine filter hole areas 322, the coarse filter hole area 323, or the medium filter hole area 324, and a first paddle 327, a second paddle 328, and a third paddle 329 are evenly arranged below the outer wall of the outer cylinder 325. A marking groove 3210 for marking the position of the first paddle 327, the second paddle 328, or the third paddle 329 is also provided on the outer wall of the filter cylinder 321. When the first paddle 327 and the marking groove 3210 are located opposite to each other, the discharge ports 326 at the two positions are 326 are respectively opposite to the two fine filter pore areas 322 on both sides of the outer wall of the filter cartridge 321, that is, the anti-collapse agent powder that has been ground to a qualified level can be discharged through the fine filter pore area 322; when the second paddle 328 is rotated to a position opposite to the marking groove 3210, the two discharge ports 326 are respectively opposite to the two coarse filter pore areas 323, that is, the anti-collapse agent powder that has been ground to a qualified level can be discharged through the coarse filter pore area 323; when the third paddle 329 is rotated to a position opposite to the marking groove 3210, the two discharge ports 326 are respectively opposite to the two medium filter pore areas 324, that is, the anti-collapse agent powder that has been ground to a qualified level can be discharged through the medium filter pore area 324;

[0075] The embodiment of the present invention also provides a grinding method for producing an anti-slumping agent for drilling fluid, and a grinding device for producing an anti-slumping agent for drilling fluid, the method comprising the following steps:

[0076] Step 1: The anti-collapse agent raw material is input into the distribution component 18 in the anti-collapse agent grinding mechanism 1 through the raw material delivery pipe 2. After being evenly distributed by the distribution component 18, the anti-collapse agent raw material is evenly distributed around the top of the grinding disc component 11;

[0077] The specific process is as follows: the anti-collapse agent raw material enters the interior of the raw material conveying pipe 2 through the entrance at one end thereof, and because the raw material conveying pipe 2 is designed to be inclined, the anti-collapse agent raw material slides down the slideway inside the raw material conveying pipe 2 under the action of its own gravity to the top entrance of the distributing cylinder 181, and the energy-saving motor 113 drives the supporting plate 114 and the conical plate 182 to rotate at the same time. The anti-collapse agent raw material gradually moves down the inner wall of the distributing cylinder 181 under the push of the auger 183, and the anti-collapse agent raw material slides along the conical surface of the conical plate 182 into multiple discharge nozzles 184. The anti-collapse agent is output to the surroundings of the top center position of the grinding plate 115 through multiple discharge nozzles 184. Since the supporting plate 114 and the grinding plate 115 form a whole synchronous rotation, The anti-collapse agent raw material located on the top of the grinding plate 115 rotates synchronously, and the fine grinding roller 177 and the coarse grinding roller 178 rotate synchronously due to the friction force of the anti-collapse agent raw material passing below. The anti-collapse agent raw material first meets the fine grinding roller 177, and is crushed from a large particle state into small particles by the joint rolling and grinding action of the fine grinding roller 177 and the grinding plate 115. The crushed small particles of anti-collapse agent are gradually thrown away from the center of the grinding plate 115 due to the centrifugal force during the rotation of the grinding plate 115, so that the small particles of anti-collapse agent powder meet the fine grinding roller 178. The small particles of anti-collapse agent powder are formed into fine particles with a smaller particle size under the joint action of the fine grinding roller 178 and the grinding plate 115.

[0078] Since the fine-particle powder has a small weight, the suction wind force formed by the axial flow fan 39 sucks this part of the fine-particle powder upward. After entering the filter cartridge assembly 32, the fine-particle powder is discharged through the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324 and the discharge port 326 connected to the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324. The fine-particle anti-collapse agent powder continues to move upward through the Laval tube 38 and enters the powder output pipe 4 along the outlet at the top of the blocking tube 31 and is input into the collection device. During the flow of the airflow, the fan blades 37 can be synchronously driven to rotate. Since the airflow increases in velocity after passing through the Laval tube 38, the fan blades 37 can rotate rapidly under the drive of the high-speed airflow. The spiral scraper 36 synchronously cleans the unqualified anti-collapse agent powder particles attached to the inner wall of the filter cartridge 321 while the transmission shaft 35 rotates.

[0079] Under the suction force of the axial flow fan 39, the outside air enters the heating box 161 through the air inlet on the outer wall thereof. The temperature of the air rises rapidly under the heating effect of the electric heating wire inside the heating box 161. The high-temperature air smoke delivery pipe 162 blows toward the top of the grinding plate 115, and the rising anti-collapse agent powder particles are rapidly dried under the effect of the hot air.

[0080] When it is necessary to grind the anti-collapse agent particles of different particle sizes, the electric push rod 174 is controlled according to the preset control program to push the lifting plate 173 to move up or down inside the No. 1 lifting slot 13, and the output end of the electric push rod 174 moves the No. 3 lifting slot 15 up or down, and each preset program corresponds to the fine grinding roller 178, the coarse grinding roller 177 and the top of the grinding plate 115 to form a grinding gap. Under the setting of each preset program, the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324 is selected according to the preset program that has been determined to participate in the screening work, and the particle size of the anti-collapse agent powder formed by grinding corresponding to each preset program is adapted to one of the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324, that is, the particle size of the anti-collapse agent powder formed by grinding corresponding to each preset program can only be discharged through one of the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324;

[0081] When adjusting the fine filter pore area 322 or the coarse filter pore area 323 or the medium filter pore area 324 to participate in the screening work, first remove the protective plate arranged outside the inspection port 5, and push the outer cylinder 325 to rotate with reference to the position of the marking groove 3210. When the position of the No. 1 paddle 327 and the marking groove 3210 coincide, the positions of the two discharge ports 326 coincide with the fine filter pore areas 322 at the two positions respectively, and the anti-collapse agent powder with a finer particle size can be allowed to pass through at this time. When the position of the No. 2 paddle 328 and the marking groove 3210 coincide, the anti-collapse agent powder with a coarser particle size can be allowed to pass through at this time. When the position of the No. 3 paddle 329 and the marking groove 3210 coincide, the anti-collapse agent powder with a coarse particle size can be allowed to pass through at this time.

[0082] Step 2: The grinding disc assembly 11 drives the anti-collapse agent raw material distributed on the top thereof to rotate together, and the anti-collapse agent raw material moves from the center position of the top of the grinding disc assembly 11 to the edge position under the action of centrifugal force. During this process, the roller pressing assembly 17 performs rough grinding and fine grinding operations on the anti-collapse agent raw material respectively;

[0083] Step 3: The powder particles formed by grinding are sucked upward by the screening mechanism 3, and the anti-collapse agent raw materials that have passed the grinding are discharged through the powder output pipe 4, and the anti-collapse agent raw materials that have failed the grinding are intercepted and ground again.

[0084] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for producing an anti-collapse agent for drilling fluid, characterized in that: include: The anti-collapse agent grinding mechanism is arranged on the ground and connected to the ground by bolts, and is used for grinding the anti-collapse agent into anti-collapse agent powders with different particle sizes according to the use environment requirements of the anti-collapse agent; The anti-collapse agent grinding mechanism comprises a grinding disc assembly, a protective tube assembly, a roller assembly and a material distribution assembly. The material distribution assembly evenly distributes the anti-collapse agent raw material on the top of the grinding disc assembly, and then the roller assembly performs two grinding operations, namely, rough grinding and fine grinding. The height of the roller assembly from the top of the grinding disc assembly is adjusted to adapt to the grinding of anti-collapse agent particles of different particle sizes. A raw material conveying pipe is arranged on the outer wall of the anti-collapse agent grinding mechanism and is used to convey raw materials for the production of the anti-collapse agent; A screening mechanism is arranged on the top of the anti-collapse agent grinding mechanism and connected to the anti-collapse agent grinding mechanism through a flange, and is used to screen the anti-collapse agent particles that do not meet the particle size requirements and push the anti-collapse agent particles toward the anti-collapse agent grinding mechanism, so as to cooperate with the anti-collapse agent grinding mechanism to form anti-collapse agent powder particles that meet the particle size requirements; The powder output pipe is connected to the top of the screening mechanism through a No. 2 flange and is used to transport the qualified anti-collapse agent powder to an external collection device for storage.

2. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 1, characterized in that: An inspection port for conveniently adjusting different screening particle sizes is also provided on one side of the outer wall of the screening mechanism, and a protective plate for sealing the inspection port is detachably provided inside the inspection port.

3. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 1, characterized in that: The grinding disc assembly includes an energy-saving motor protection cylinder and a grinding cylinder fixedly arranged on the top of the energy-saving motor protection cylinder, an energy-saving motor is fixedly arranged inside the energy-saving motor protection cylinder, the output shaft of the energy-saving motor rotates through the grinding cylinder and extends into the interior thereof, and a carrying disc is rotatably arranged inside the grinding cylinder, a plurality of grinding plates are detachably arranged on the top of the carrying disc, the circular structure formed between the plurality of grinding plates can completely cover the top of the carrying disc, and the output shaft of the energy-saving motor is connected to the bottom of the carrying disc.

4. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 3, characterized in that: The protective cylinder assembly includes a cylinder body connected to the top of the energy-saving motor protective cylinder by bolts, and a No. 1 lifting groove is opened at relative positions on both sides of the cylinder body, a No. 2 lifting groove connected to the No. 1 lifting groove at the corresponding position is opened at relative positions on both sides of the inner wall of the cylinder, and a No. 3 lifting groove connected to the No. 1 lifting groove at the corresponding position is opened at relative positions on both sides of the outer wall of the cylinder.

5. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 4, characterized in that: Air heating components for providing heat for the anti-collapse agent grinding process are arranged on both sides of the outer wall of the cylinder to dry the anti-collapse agent powder particles after grinding. The air heating components include a heating box detachably arranged on the outer wall of the cylinder, and an air inlet and an exhaust port are respectively opened on both sides of the outer wall of the heating box, and an electric heating wire is also fixedly arranged inside the heating box, and an air pipe for transporting heat to the top of the grinding plate is fixedly arranged inside the exhaust port.

6. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 4, characterized in that: The rolling assembly includes a sliding sleeve, and lifting plates are fixedly arranged on both sides of the outer wall of the sliding sleeve through support arms, and an electric push rod is arranged on one side of each lifting plate, and the output end of the electric push rod is fixedly connected to the outer wall of the lifting plate, and the electric push rod is fixedly arranged on the outer wall of the cylinder; A plurality of grinding execution units are evenly arranged on the outer wall of the sleeve, and the grinding execution unit includes a hanging arm detachably arranged on the outer wall of the sleeve, and a rotating shaft is fixedly arranged on the side wall of the hanging arm away from the sleeve, and a coarse grinding roller and a fine grinding roller are rotatably sleeved on the outer wall of the rotating shaft.

7. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 3, characterized in that: The material distribution component includes a material distribution cylinder detachably arranged on the top of multiple grinding plates, a conical disk is rotatably arranged at the lower part of the material distribution cylinder, an auger for pushing down the anti-collapse agent is rotatably arranged on the top of the conical disk, and multiple raw material release ports are evenly opened around the outer wall of the material distribution cylinder and above the conical disk, and a discharge nozzle is fixedly arranged inside each raw material release port.

8. The grinding device for producing an anti-collapse agent for drilling fluid according to claim 4, characterized in that: The screening mechanism comprises a blocking tube fixedly connected to the top of the cylinder, a filter cartridge assembly for screening unqualified anti-collapse agent particles and allowing qualified anti-collapse agent particles to pass is arranged inside the blocking tube, a cover plate is fixedly arranged on the top of the filter cartridge assembly, and an annular blocking plate for only allowing anti-collapse agent particles to enter the interior of the filter cartridge assembly from the bottom of the filter cartridge assembly is fixedly arranged between the bottom of the filter cartridge assembly and the inner wall of the blocking tube; A cleaning assembly for cleaning the inner wall of the filter cartridge assembly is also provided inside the filter cartridge assembly, and the cleaning assembly includes a transmission shaft rotatably arranged inside the filter cartridge assembly through a bracket, a spiral scraper is fixedly arranged on the outer wall of the transmission shaft through a connecting rod, a plurality of bristles are evenly and fixedly arranged on the outer wall of the spiral scraper, and one end of the bristles away from the transmission shaft abuts against the inner wall of the filter cartridge assembly, the top end of the transmission shaft rotates through the cover plate and is fixedly provided with fan blades, and a Laval tube is fixedly arranged on the inner wall of the blocking tube and above the cover plate, and an axial flow fan is fixedly arranged on the top of the Laval tube.

9. A grinding device for producing an anti-collapse agent for drilling fluid according to claim 8, characterized in that: The filter cartridge assembly comprises two fine filter pore areas, two coarse filter pore areas and two medium filter pore areas uniformly arranged on the outer wall of the filter cartridge, and the two fine filter pore areas, the two coarse filter pore areas and the two medium filter pore areas are all symmetrically arranged relative to the center of the filter cartridge; An outer cylinder is rotatably sleeved on the outer wall of the filter cylinder, and discharge ports are provided on both sides of the outer wall of the outer cylinder. Each discharge port can cover one of the fine filter hole areas, the coarse filter hole area or the medium filter hole area, and a No. 1 paddle, a No. 2 paddle and a No. 3 paddle are evenly arranged below the outer wall of the outer cylinder. A marking groove for marking the position of the No. 1 paddle, the No. 2 paddle or the No. 3 paddle is also provided on the outer wall of the filter cylinder.

10. A grinding method for producing an anti-collapse agent for drilling fluid, characterized in that: A grinding device for producing an anti-collapse agent for drilling fluid as claimed in any one of claims 1 to 9, the method comprising the following steps: Step 1: The anti-collapse agent raw material is input into the distribution component in the anti-collapse agent grinding mechanism through the raw material conveying pipe. After being evenly distributed by the distribution component, the anti-collapse agent raw material is evenly distributed around the top of the grinding disc component; Step 2, the grinding disc assembly drives the anti-collapse agent raw materials distributed on the top thereof to rotate together, and the anti-collapse agent raw materials move from the center position of the top of the grinding disc assembly to the edge position under the action of centrifugal force. In this process, the roller pressing assembly performs coarse grinding and fine grinding operations on the anti-collapse agent raw materials respectively; Step 3: The powder particles formed by grinding are sucked upward by the screening mechanism, and the qualified anti-collapse agent raw materials are discharged through the powder output pipe, and the unqualified anti-collapse agent raw materials are blocked and ground again.

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