Preparation equipment of plugging filter material for drilling fluid

Abstract

In the equipment, one end of a rotating rod is connected with a motor, and the other end of the rotating rod extends into an upper cavity in a shell; the crankshaft is connected with a rotating rod; the driving rod is connected with the crankshaft and converts rotation of the crankshaft into reciprocating motion; one end of the movable rod is connected with the crankshaft, the other end of the movable rod extends to the lower cavity of the shell, and the movable rod rotates along with rotation of the crankshaft; the fixed plate is fixed to the side wall of the upper cavity and opposite to the movable plate, the fixed plate is provided with a plurality of second crushing cones and grooves, and the second crushing cones and the first crushing cones are arranged in a staggered mode so as to conduct crushing along with reciprocating motion of the movable plate; the fan is arranged on the side, away from the dust suction pipe, of the dust filtering plate so as to provide negative pressure to suck dust between the movable plate and the fixed plate, the net plate is installed at the through opening through an installation frame so as to filter the smashed plugging agent raw materials for the drilling fluid, and the installation frame is fixed to the bottom of the shell through bolts. The equipment for preparing the plugging filter material for the drilling fluid is capable of removing dust and improving the crushing effect and the crushing purity.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of plugging filter material for drilling fluid, in particular to equipment for preparing plugging filter material for drilling fluid. Background Art

[0002] The plugging agent while drilling is mainly made of natural raw materials and is produced through scientific formula. Its main ingredients are highly active humates and their derivatives, cellulose, plant gum, pentosan, etc. It has the appearance of a flowable solid powder and is a plugging material used in drilling fluid to reduce filtration and protect reservoirs. During the preparation process of the plugging agent raw materials, crushing equipment is needed to crush large pieces of plugging agent raw materials;

[0003] The raw material crushing equipment for preparing drilling fluid plugging agents in the prior art can achieve continuous production, but it does not have a dust-proof function and the crushing effect is poor. A large amount of dust will inevitably be generated during the crushing process of the plugging agent raw materials. If this dust cannot be cleaned in time, it will seriously affect the processing environment and personnel.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a device for preparing plugging filter materials for drilling fluid, which solves the problem that a large amount of dust is generated during the crushing process of the raw materials for preparing the existing drilling fluid plugging agent, and the raw materials cannot be cleaned in time, and the crushing effect is poor. The dust suction mechanism realizes dust prevention and improves the crushing effect of the device for preparing plugging filter materials for drilling fluid.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a device for preparing a plugging filter material for drilling fluid, comprising:

[0008] Base;

[0009] A support plate, which stands upright on the base;

[0010] A shell, which is supported on the support plate, and the shell is a hollow shell;

[0011] a partition connected transversely within the shell to divide it into an upper cavity and a lower cavity;

[0012] A motor, which is arranged on the top of the housing;

[0013] A rotating rod, one end of which is connected to the motor and the other end of which extends to the upper cavity in the housing;

[0014] a crankshaft connected to the rotating rod;

[0015] a drive rod connected to the crankshaft and converting the rotation of the crankshaft into reciprocating motion;

[0016] A movable rod, one end of which is connected to the crankshaft and the other end of which extends to the lower cavity of the shell, and the movable rod rotates with the rotation of the crankshaft;

[0017] A pulverizing cylinder, which is disposed in the lower cavity and arranged around the movable rod, and a feed port is provided on the side wall of the pulverizing cylinder;

[0018] A spiral grinding disc extending along the axis of the movable rod;

[0019] a moving plate connected to the driving rod to reciprocate in the upper cavity, the moving plate being provided with a plurality of first crushing cones on a side opposite to the driving rod;

[0020] A fixed plate, which is fixed on the side wall of the upper cavity and opposite to the movable plate, the fixed plate is provided with a plurality of second crushing cones and grooves, the second crushing cones are staggered with the first crushing cones to perform crushing with the reciprocating motion of the movable plate;

[0021] An upper hopper, which is arranged on the top of the shell and communicated between the movable plate and the fixed plate to input the raw material of the plugging agent for drilling fluid;

[0022] A dust collecting plate is arranged in the groove,

[0023] A dust collecting box is arranged on the outer surface of the housing close to the fixing plate, the dust collecting box is connected to the dust collecting plate via a dust collecting pipe, and a dust filter plate is arranged on the side of the dust collecting box away from the dust collecting pipe.

[0024] A fan is arranged on a side of the dust filter plate away from the dust suction pipe to provide negative pressure to suck dust between the moving plate and the fixed plate.

[0025] A guide plate, one end of which is connected to the side wall of the lower cavity, and the other end of which is connected to the crushing cylinder in an inclined downward manner and is located at the lower edge of the feed port, and the partition plate is provided with a connecting hole connecting the upper cavity between the movable plate and the fixed plate and the lower cavity above the guide plate, so as to guide the crushed drilling fluid plugging agent raw material into the crushing cylinder for crushing;

[0026] A through port is provided at the bottom of the housing and is located in the grinding cylinder,

[0027] The mesh plate is installed on the through port via a mounting frame to filter the crushed raw material of the drilling fluid plugging agent, and the mounting frame is fixed to the bottom of the shell via bolts.

[0028] The material receiving box is supported on the base and located below the through opening to receive the filtered crushed material.

[0029] In the drilling fluid plugging filter material preparation device, an upper hopper is arranged on the right side of the top of the shell, and a hopper cover is arranged on the top of the upper hopper.

[0030] In the drilling fluid plugging filter material preparation device, a cover plate for maintenance is fixedly connected to the front of the shell by screws, and the material of the cover plate is stainless steel.

[0031] In the drilling fluid plugging filter material preparation device, a cleaning door for cleaning is arranged on the front of the dust collecting box, and a pull handle is fixedly connected to the front of the cleaning door.

[0032] In the drilling fluid plugging filter material preparation device, the base provides a horizontal supporting surface.

[0033] In the drilling fluid plugging filter material preparation equipment, the rotating rod is arranged at the central axis position of the crankshaft.

[0034] In the drilling fluid plugging filter material preparation device, a control panel is arranged on the outer surface of the shell, and the control panel is connected to and controls the fan and the motor.

[0035] In the drilling fluid plugging filter material preparation device, the mesh plate is elastically connected to the mounting frame.

[0036] In the drilling fluid plugging filter material preparation device, the mounting frame is provided with a vibrator for elastically vibrating the mesh plate.

[0037] In the drilling fluid plugging filter material preparation device, the bottom and top ends of the fixed plate are both provided with grooves, and two dust collecting plates are respectively arranged therein.

[0038] In the above technical scheme, the present invention provides a kind of drilling fluid plugging filter material preparation equipment, which has the following beneficial effects: the drilling fluid plugging filter material preparation equipment has a dust-proof function through the cooperation of a base, a support plate, a shell, a fixed plate, a groove, a dust suction plate, a dust collecting box, a dust filter plate, a fan, a partition, a movable plate, a crushing cone, a motor, a rotating rod, a crankshaft, a driving rod, a crushing cylinder, a movable rod, a spiral grinding disc, a guide plate, a through port, a mesh plate, a mounting frame and bolts, and realizes the crushing of raw materials and dust removal during the crushing through a motor, and then further fine crushing, which not only solves the existing drilling The raw material crushing equipment for preparing liquid plugging agent does not have the dust-proof function and because it is divided into upper and lower cavities and dust is removed during reciprocating crushing, the dust and impurities are cleaned and further finely crushed, which improves the crushing effect and increases the purity of the raw materials. A receiving box is provided to store the crushed drilling fluid plugging filter material. By providing a control panel, it is convenient for operators to operate the drilling fluid plugging filter material preparation equipment. By providing an upper hopper, it is convenient for operators to add drilling fluid plugging filter material to the inner cavity of the outer shell. By providing a cover plate, it is convenient for maintenance personnel to inspect and maintain the components of the inner cavity of the outer shell. By providing a cleaning door, it is convenient for operators to clean the inner cavity of the dust collecting box. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0040] Figure 1 A schematic structural diagram of a device for preparing plugging filter material for drilling fluid provided in an embodiment of the present invention.

[0041] Figure 2 A schematic front view of a device for preparing a plugging filter material for drilling fluid provided in an embodiment of the present invention.

[0042] Figure 3 for Figure 1 A partially enlarged schematic diagram of point A of a drilling fluid plugging filter material preparation device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] See also Figure 1-2 As shown, in one embodiment, a drilling fluid plugging filter material preparation device of the present invention comprises:

[0052] Base 1;

[0053] A support plate 2, which stands upright on the base 1;

[0054] A shell 3, which is supported on the support plate 2, and the shell 3 is a hollow shell;

[0055] a partition 10, which is laterally connected to the shell 3 to divide it into an upper cavity and a lower cavity;

[0056] A motor 13, which is arranged on the top of the housing 3;

[0057] A rotating rod 14, one end of which is connected to the motor 13, and the other end of which extends to the upper cavity in the housing 3;

[0058] A crankshaft 15 connected to the rotating rod 14;

[0059] a driving rod 16 connected to the crankshaft 15 and converting the rotation of the crankshaft 15 into a reciprocating motion;

[0060] A movable rod 18, one end of which is connected to the crankshaft 15, and the other end of which extends to the lower cavity of the housing 3, and the movable rod 18 rotates with the rotation of the crankshaft 15;

[0061] A pulverizing cylinder 17, which is disposed in the lower cavity and arranged around the movable rod 18, and a feed port is provided on the side wall of the pulverizing cylinder 17;

[0062] A spiral grinding disc 19 extending along the axis of the movable rod 18;

[0063] a moving plate 11 connected to the driving rod 16 to reciprocate in the upper cavity, the moving plate 11 being provided with a plurality of first crushing cones 12 on a side opposite to the driving rod 16;

[0064] A fixed plate 4, which is fixed on the side wall of the upper cavity and opposite to the movable plate 11, the fixed plate 4 is provided with a plurality of second crushing cones and grooves 5, the second crushing cones are staggered with the first crushing cones 12 to crush with the reciprocating motion of the movable plate 11;

[0065] An upper hopper 27, which is disposed on the top of the housing 3 and communicated between the movable plate 11 and the fixed plate 4 to input the raw material of the plugging agent for drilling fluid;

[0066] The dust collecting plate 6 is arranged in the groove 5.

[0067] A dust box 7 is provided on the outer surface of the housing 3 close to the fixing plate 4. The dust box 7 is connected to the dust collecting plate 6 via a dust collecting pipe. A dust filter plate 8 is provided on the side of the dust box 7 away from the dust collecting pipe.

[0068] The fan 9 is arranged on the side of the dust filter plate 8 away from the dust suction pipe to provide negative pressure to suck the dust between the moving plate 11 and the fixed plate 4.

[0069] The guide plate 20 has one end connected to the side wall of the lower cavity, and the other end connected to the crushing cylinder 17 in an inclined downward manner and located at the lower edge of the feed port. The partition plate 10 is provided with a connecting hole connecting the upper cavity between the movable plate 11 and the fixed plate 4 and the lower cavity above the guide plate 20, so as to guide the crushed drilling fluid plugging agent raw material into the crushing cylinder 17 for crushing;

[0070] The opening 21 is provided at the bottom of the housing 3 and is located inside the grinding cylinder 17.

[0071] The mesh plate 22 is mounted on the through port 21 via a mounting frame 23 to filter the crushed raw material of the drilling fluid plugging agent. The mounting frame 23 is fixed to the bottom of the housing 3 via bolts 24.

[0072] The material receiving box 25 is supported on the base 1 and is located below the through opening 21 to receive the filtered crushed material.

[0073] In a preferred embodiment of the drilling fluid plugging filter material preparation device, an upper hopper 27 is provided on the right side of the top of the housing 3, and a hopper cover is provided on the top of the upper hopper 27.

[0074] In the preferred embodiment of the drilling fluid plugging filter material preparation device, a cover plate 28 for maintenance is fixedly connected to the front of the housing 3 by screws, and the cover plate 28 is made of stainless steel.

[0075] In a preferred embodiment of the drilling fluid plugging filter material preparation device, a cleaning door 29 for cleaning is provided on the front of the dust collecting box 7, and a handle is fixedly connected to the front of the cleaning door 29.

[0076] In a preferred embodiment of the drilling fluid plugging filter material preparation device, the base 1 provides a horizontal supporting surface.

[0077] In a preferred embodiment of the drilling fluid plugging filter material preparation device, the rotating rod 14 is arranged at the central axis position of the crankshaft 15 .

[0078] In a preferred embodiment of the drilling fluid plugging filter material preparation device, a control panel 26 is disposed on the outer surface of the housing 3 , and the control panel 26 is connected to and controls the fan 9 and the motor 13 .

[0079] In a preferred embodiment of the drilling fluid plugging filter material preparation device, the mesh plate 22 is elastically connected to the mounting frame 23 .

[0080] In a preferred embodiment of the drilling fluid plugging filter material preparation device, the mounting frame 23 is provided with a vibrator for elastically vibrating the mesh plate 22 .

[0081] In a preferred embodiment of the drilling fluid plugging filter material preparation device, the bottom and top ends of the fixing plate 4 are both provided with grooves 5, and two dust collecting plates 6 are respectively arranged therein.

[0082] In one embodiment, a device for preparing a plugging filter material for drilling fluid comprises:

[0083] A base 1 having a horizontal support surface;

[0084] A support plate 2, which stands upright on the base 1;

[0085] A shell 3, which is supported on the support plate 2, and the shell 3 is a hollow shell;

[0086] a partition 10, which is laterally connected to the shell 3 to divide it into an upper cavity and a lower cavity;

[0087] A motor 13, which is arranged on the top of the housing 3;

[0088] A rotating rod 14, one end of which is connected to the motor 13, and the other end of which extends to the upper cavity in the housing 3;

[0089] A crankshaft 15 connected to the rotating rod 14;

[0090] a driving rod 16 connected to the crankshaft 15 and converting the rotation of the crankshaft 15 into a reciprocating motion;

[0091] A movable rod 18, one end of which is connected to the crankshaft 15, and the other end of which extends to the lower cavity of the housing 3, and the movable rod 18 rotates with the rotation of the crankshaft 15;

[0092] A pulverizing cylinder 17, which is disposed in the lower cavity and arranged around the movable rod 18, and a feed port is provided on the side wall of the pulverizing cylinder 17;

[0093] A spiral grinding disc 19 extending along the axis of the movable rod 18;

[0094] a moving plate 11 connected to the driving rod 16 to reciprocate in the upper cavity, the moving plate 11 being provided with a plurality of first crushing cones 12 on a side opposite to the driving rod 16;

[0095] A fixed plate 4, which is fixed on the side wall of the upper cavity and opposite to the movable plate 11, the fixed plate 4 is provided with a plurality of second crushing cones and grooves 5, the second crushing cones are staggered with the first crushing cones 12 to crush with the reciprocating motion of the movable plate 11;

[0096] An upper hopper 27, which is disposed on the top of the housing 3 and communicated between the movable plate 11 and the fixed plate 4 to input the raw material of the plugging agent for drilling fluid;

[0097] The dust collecting plate 6 is arranged in the groove 5.

[0098] A dust box 7 is provided on the outer surface of the housing 3 close to the fixing plate 4. The dust box 7 is connected to the dust collecting plate 6 via a dust collecting pipe. A dust filter plate 8 is provided on the side of the dust box 7 away from the dust collecting pipe.

[0099] The fan 9 is arranged on the side of the dust filter plate 8 away from the dust suction pipe to provide negative pressure to suck the dust between the moving plate 11 and the fixed plate 4.

[0100] The guide plate 20 has one end connected to the side wall of the lower cavity, and the other end connected to the crushing cylinder 17 in an inclined downward manner and located at the lower edge of the feed port. The partition plate 10 is provided with a connecting hole connecting the upper cavity between the movable plate 11 and the fixed plate 4 and the lower cavity above the guide plate 20, so as to guide the crushed drilling fluid plugging agent raw material into the crushing cylinder 17 for crushing;

[0101] The opening 21 is provided at the bottom of the housing 3 and is located inside the grinding cylinder 17.

[0102] The mesh plate 22 is mounted on the through port 21 via a mounting frame 23 to filter the crushed raw material of the drilling fluid plugging agent. The mounting frame 23 is fixed to the bottom of the housing 3 via bolts 24.

[0103] The receiving box 25 is supported on the base 1 and is located below the through opening 21 to receive the filtered crushed material.

[0104] A control panel 26 is disposed on the outer surface of the housing 3 , and the control panel 26 is connected to and controls the fan 9 and the motor 13 .

[0105] In one embodiment, a drilling fluid plugging filter material preparation device includes a base 1, support plates 2 are fixedly connected to both sides of the top of the base 1, a shell 3 is fixedly connected to the top of the support plate 2, a fixed plate 4 is fixedly connected to the top of the right side of the inner cavity of the shell 3, grooves 5 are provided at the top and bottom of the left side of the fixed plate 4, a dust suction plate 6 is fixedly connected to the inner cavity of the groove 5, a dust collecting box 7 is fixedly connected to the top of the right side of the shell 3, the right side of the dust suction plate 6 is connected to the inner cavity of the dust collecting box 7 through a dust suction pipe, a dust filter plate 8 is provided on the right side of the inner cavity of the dust collecting box 7, a fan 9 is fixedly connected to the right side of the dust collecting box 7, a partition 10 is fixedly connected to the inner wall of the shell 3, a movable plate 11 is movably connected to the top of the partition 10, a first crushing cone 12 is fixedly connected to the side of the movable plate 11 opposite to the fixed plate 4, and the fixed plate 4 is provided with a second crushing cone The outer shell 3 has a plurality of cones, and the outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones. The outer shell 3 has a plurality of cones.

[0106] A material receiving box 25 is movably connected to the top of the base 1 , and handles are fixedly connected to the front and back of the material receiving box 25 .

[0107] According to the above technical solution, a material receiving box 25 is provided to receive the plugging filter material for the crushed drilling fluid.

[0108] A control panel 26 is fixedly connected to the top of the left side of the housing 3 , and a junction box is fixedly connected to the bottom of the right side of the housing 3 .

[0109] Through the above technical solution, by setting the control panel 26, it is convenient for operators to operate the drilling fluid plugging filter material preparation equipment.

[0110] An upper hopper 27 is provided on the right side of the top of the housing 3 , and a hopper cover is provided on the top of the upper hopper 27 .

[0111] Through the above technical solution, by providing the upper hopper 27 , it is convenient for operators to add the drilling fluid plugging filter material into the inner cavity of the shell 3 .

[0112] A cover plate 28 is fixedly connected to the front of the housing 3 by screws, and the cover plate 28 is made of stainless steel.

[0113] Through the above technical solution, by providing the cover plate 28, it is convenient for maintenance personnel to perform maintenance on the components in the inner cavity of the shell 3.

[0114] A cleaning door 29 is provided on the front of the dust box 7, and a handle is fixedly connected to the front of the cleaning door 29.

[0115] Through the above technical solution, by providing the cleaning door 29 , it is convenient for operators to clean the inner cavity of the dust box 7 .

[0116] During use, the operator starts the motor 13 and the fan 9, the output end of the motor 13 drives the rotating rod 14 to rotate, the rotating rod 14 drives the crankshaft 15 to rotate, the crankshaft 15 drives the movable rod 18 to rotate, the movable rod 18 drives the spiral grinding disc 19 to rotate, the crankshaft 15 drives the movable plate 11 to move left and right through the driving rod 16, the movable plate 11 drives the first crushing cone 12 to move left and right, and then the drilling fluid plugging filter material is put into the inner cavity of the shell 3 through the upper hopper 27, and the two groups of crushing cones crush the drilling fluid plugging filter material. The crushed drilling fluid plugging filter material slides into the inner cavity of the crushing barrel 17 through the guide plate 20, and the rotating spiral grinding disc 19 further crushes the drilling fluid plugging filter material. In this process, the fan 9 sucks the dust generated during the crushing process of the drilling fluid plugging filter material into the inner cavity of the dust collecting box 7 through the dust suction plate 6 and the dust suction pipe.

[0117] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0118] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for preparing plugging filter material for drilling fluid, characterized in that: These include, Base; A support plate, which stands upright on the base; A shell, which is supported on the support plate, and the shell is a hollow shell; a partition connected transversely within the shell to divide it into an upper cavity and a lower cavity; A motor, which is arranged on the top of the housing; A rotating rod, one end of which is connected to the motor and the other end of which extends to the upper cavity in the housing; a crankshaft connected to the rotating rod; a drive rod connected to the crankshaft and converting the rotation of the crankshaft into reciprocating motion; A movable rod, one end of which is connected to the crankshaft and the other end of which extends to the lower cavity of the shell, and the movable rod rotates with the rotation of the crankshaft; A pulverizing cylinder, which is disposed in the lower cavity and arranged around the movable rod, and a feed port is provided on the side wall of the pulverizing cylinder; A spiral grinding disc extending along the axis of the movable rod; a moving plate connected to the driving rod to reciprocate in the upper cavity, the moving plate being provided with a plurality of first crushing cones on a side opposite to the driving rod; A fixed plate, which is fixed on the side wall of the upper cavity and opposite to the movable plate, the fixed plate is provided with a plurality of second crushing cones and grooves, the second crushing cones are staggered with the first crushing cones to perform crushing with the reciprocating motion of the movable plate; An upper hopper, which is arranged on the top of the shell and communicated between the movable plate and the fixed plate to input the raw material of the plugging agent for drilling fluid; A dust collecting plate is arranged in the groove, A dust collecting box is arranged on the outer surface of the housing close to the fixing plate, the dust collecting box is connected to the dust collecting plate via a dust collecting pipe, and a dust filter plate is arranged on the side of the dust collecting box away from the dust collecting pipe. A fan is arranged on a side of the dust filter plate away from the dust suction pipe to provide negative pressure to suck dust between the moving plate and the fixed plate. A guide plate, one end of which is connected to the side wall of the lower cavity, and the other end of which is connected to the crushing cylinder in an inclined downward manner and is located at the lower edge of the feed port, and the partition plate is provided with a connecting hole connecting the upper cavity between the movable plate and the fixed plate and the lower cavity above the guide plate, so as to guide the crushed drilling fluid plugging agent raw material into the crushing cylinder for crushing; A through port is provided at the bottom of the housing and is located in the grinding cylinder, The mesh plate is installed on the through port via a mounting frame to filter the crushed raw material of the drilling fluid plugging agent, and the mounting frame is fixed to the bottom of the shell via bolts. The material receiving box is supported on the base and located below the through opening to receive the filtered crushed material.

2. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: An upper hopper is arranged on the right side of the top of the shell, and a hopper cover is arranged on the top of the upper hopper.

3. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: A cover plate for maintenance is fixedly connected to the front of the shell by screws, and the cover plate is made of stainless steel.

4. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: A cleaning door for cleaning is arranged on the front of the dust collecting box, and a handle is fixedly connected to the front of the cleaning door.

5. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: The base provides a horizontal support surface.

6. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: The rotating rod is arranged at the central axis position of the crankshaft.

7. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: A control panel is arranged on the outer surface of the shell, and the control panel is connected to and controls the fan and the motor.

8. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: The mesh plate is elastically connected to the mounting frame.

9. The equipment for preparing plugging filter material for drilling fluid according to claim 8, characterized in that: The mounting frame is provided with a vibrator for elastically vibrating the mesh plate.

10. The equipment for preparing plugging filter material for drilling fluid according to claim 1, characterized in that: The bottom end and the top end of the fixing plate are both provided with grooves, and two dust collecting plates are respectively arranged therein.

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