A mud pump suction filter screen easy to clean for a core drill

Abstract

The utility model discloses a kind of mud pump easy cleaning suction filter screen for core drill rig, including mud pump, and three-way valve being connected on mud pump, the total export pipeline of three-way valve is connected with mud pump flange, the two sides of three-way valve are respectively connected with first branch pipe, second branch pipe, control valve handle is equipped on three-way valve;Each be equipped with a filter screen module on first branch pipe, second branch pipe, guide chute and the filter screen board matched in filter screen module are equipped, filter screen board is detachably installed in guide chute;Slotted seal layer is fixedly arranged in guide chute, filter screen board seal layer is fixedly arranged in the outside edge of filter screen board.The design controls the filter screen module work on first branch pipe, second branch pipe respectively by three-way valve, in the mode of switching channel, ensure that mud filtration system has very high usability, improves the pure drilling time and operation efficiency of drilling equipment.

Description

Technical Field

[0001] This utility model relates to the field of mineral exploration equipment technology, and in particular to an easy-to-clean suction filter for a mud pump used in core drilling rigs. Background Technology

[0002] In core drilling operations, drilling mud plays a crucial role in carrying cuttings, cooling the drill bit, lubricating drilling tools, and stabilizing the wellbore. The mud pump is the vital equipment for pumping the mud. Traditional fixed filters installed at the pump's suction end are often easily clogged by debris such as tree roots, weeds, plastic, or rock fragments. This drastically reduces the pump's suction efficiency, leading to insufficient pumping volume, cavitation within the pump, and in severe cases, even damage to the pump. The entire drilling operation must be stopped, and operators must disassemble and clean the filters. This process is not only time-consuming and labor-intensive, severely slowing down the exploration progress and increasing time and labor costs, but also poses hygiene and safety risks as operators are in direct contact with the complex composition of the mud.

[0003] Therefore, a mud pump with an easy-to-clean suction filter is needed to avoid the adverse effects of downtime maintenance caused by filter clogging. Utility Model Content

[0004] This utility model addresses the technical problem that during core drilling operations, the filter screen of the mud pump becomes clogged with debris, requiring the machine to be stopped and disassembled for cleaning. It provides an easy-to-clean suction filter screen for a mud pump used in core drilling rigs, comprising a mud pump and a three-way valve connected to the mud pump. The main outlet pipe of the three-way valve is connected to the flange of the mud pump. A first branch pipe and a second branch pipe are connected to both sides of the three-way valve, and a control valve handle is provided on the three-way valve.

[0005] Each of the first branch pipe and the second branch pipe is provided with a filter module. The filter module is provided with a guide groove and a matching filter plate. The filter plate is detachably installed in the guide groove.

[0006] A groove sealing layer is fixedly provided inside the guide groove, and a filter plate sealing layer is fixedly provided on the outer edge of the filter plate.

[0007] Preferably, in the above technical solution, the cross-section of the guide groove is an inverted trapezoid, and the filter plate is wedge-shaped and matches the guide groove.

[0008] Preferably, in the above technical solution, each of the filter modules is provided with a locking mechanism on both sides of the top, and the locking mechanism is located above both ends of the filter plate.

[0009] Preferably, in the above technical solution, the locking mechanism includes an "L"-shaped rotating rod and a "Z"-shaped fixing buckle. The "L"-shaped rotating rod is rotatably connected to the filter module, and the bottom of the "Z"-shaped fixing buckle is fixedly connected to the filter module to ensure that the "L"-shaped rotating rod is engaged in the "Z"-shaped fixing buckle after rotation.

[0010] Preferably, in the above technical solution, a spring is fixedly connected to the lower middle section of the "L"-shaped rotating rod.

[0011] Preferably, in the above technical solution, a flexible rubber pad is fixedly connected to the bottom of the spring, and the flexible rubber pad is in contact with the top of the filter plate.

[0012] Preferably, in the above technical solution, a handle is fixedly connected to the top center of the filter plate.

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

[0014] This invention uses a three-way valve to control the operation of the filter modules on the first and second branch pipes respectively. By switching channels, it ensures that the mud filtration system has extremely high availability and improves the pure drilling time and operation efficiency of drilling equipment.

[0015] This invention features a wedge-shaped filter plate that engages with an inverted trapezoidal guide groove, secured by a locking mechanism to improve the airtightness between the filter plate and the filter module. Operators can easily disassemble the filter plate by manually rotating the locking mechanism, simplifying the disassembly and cleaning process and reducing the time required. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an easy-to-clean suction filter screen for a mud pump used in a core drilling rig according to the present invention;

[0017] Figure 2 for Figure 1 A close-up view of the middle filter module;

[0018] Figure 3 This is a top side view of the filter module in the suction filter screen of a mud pump for a core drilling rig, which is easy to clean.

[0019] Figure 4 This is a schematic diagram of the guide groove of the easy-to-clean suction filter module of the mud pump for core drilling rig according to the present invention;

[0020] Figure 5 This is a cross-sectional schematic diagram showing the connection relationship between the guide groove and the filter plate in the easy-to-clean suction filter screen of a mud pump for a core drilling rig according to this utility model.

[0021] Explanation of key figure labels:

[0022] 1-Mud pump, 2-Three-way valve, 3-Filter module, 21-First branch pipe, 22-Second branch pipe, 23-Main outlet pipe, 25-Control valve handle, 31-Guide chute, 32-Filter plate, 33-Handle, 35-Locking mechanism, 311-Chute sealing layer, 321-Filter plate sealing layer, 322-Filter, 351-"L" shaped rotating rod, 352-"Z" shaped fixing buckle, 353-Spring, 355-Flexible rubber pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, this utility model discloses an easy-to-clean suction filter screen for a mud pump used in core drilling rigs. It includes a mud pump 1 and a three-way valve 2 connected to the mud pump 1. The main outlet pipe 23 of the three-way valve 2 is connected to the flange of the mud pump 1. A first branch pipe 21 and a second branch pipe 22 are connected to opposite sides of the three-way valve 2. A control valve handle 25 is provided on the three-way valve 2; by rotating the control valve handle 25, one of the first branch pipe 21 or the second branch pipe 22 can be controlled to operate. The first branch pipe 21 and the second branch pipe 22 are also connected to the three-way valve 2 via flanges. Each of the first branch pipe 21 and the second branch pipe 22 is equipped with a filter module 3. The filter module 3 contains a guide groove 31 and a matching filter plate 32. The filter plate 32 is detachably installed within the guide groove 31; the guide groove 31 precisely guides the insertion trajectory of the filter plate 32 and bears the fluid pressure during operation. A groove sealing layer 311 is fixedly installed inside the guide groove 31, and a filter plate sealing layer 321 is fixedly installed on the outer edge of the filter plate 32. Through the contact between the groove sealing layer 311 and the filter plate sealing layer 321, the filter plate 32 forms a reliable end-face seal after insertion into the filter module 3, ensuring no leakage under the strong suction of the pump. The guide groove 31 has an inverted trapezoidal cross-section, and the filter plate 32 is wedge-shaped to match the guide groove 31. The inverted trapezoidal shape of the guide groove 31 matches the wedge shape of the filter plate 32, increasing the contact area between the filter plate 32 and the sidewall when inserted into the filter module 3. Under downward pressure, this further increases its airtightness, ensuring that all fluid must pass through the filter and will not leak from gaps.

[0025] It should be further explained that each of the filter modules 3 has a locking mechanism 35 on both sides of its top, and the locking mechanism 35 is located above both ends of the filter plate 32. The locking mechanism 35 includes an "L"-shaped rotating rod 351 and a "Z"-shaped fixing buckle 352. The "L"-shaped rotating rod 351 is rotatably connected to the filter module 3, and the bottom of the "Z"-shaped fixing buckle 352 is fixedly connected to the filter module 3 to ensure that the "L"-shaped rotating rod 351 is engaged in the "Z"-shaped fixing buckle 352 after rotation. The "L"-shaped rotating rod 351 and the "Z"-shaped fixing buckle 352 together complete the limiting function of the filter plate 32. When the filter plate 32 is inserted into the filter module 3 along the guide groove 31, the "L"-shaped rotating rod 351 is rotated to enter from one side of the opening of the "Z"-shaped fixing buckle 352 and is fastened in the "Z"-shaped fixing buckle 352, thus completing the fixation of the filter plate 32. A spring 353 is fixedly connected to the lower middle section of the "L"-shaped rotating rod 351. A flexible rubber pad 355 is fixedly connected to the bottom of the spring 353, and the flexible rubber pad 355 contacts the top of the filter plate 32. The spring 353 and the flexible rubber pad 355 together apply a downward force to the filter plate 32, thereby pressing the filter plate 32 into the filter module 3, further reducing the gap when the sliding groove sealing layer 311 contacts the filter plate sealing layer 321, so that the sliding groove sealing layer 311 and the filter plate sealing layer 321 are completely fitted together, improving the sealing effect of the filter plate 32 in the filter module 3. A handle 33 is fixedly connected to the top center of the filter plate 32. After the filter modules 3 in the first branch pipe 21 and the second branch pipe 22 have been working for a period of time, if the operator finds that the mud pump supply is not smooth, they can rotate the control valve handle 25 to activate the other branch pipe and the filter module 3, completing the switch. At this time, the mud flow is immediately guided to the other branch pipe and the filter module 3 connected in series with the pipe, and the mud pump supply is restored. This switching process takes only 2-5 seconds and has negligible impact on drilling operations. The operator can manually open the locking mechanism 35 in the blocked filter module 3 and pull the filter plate 32 out of the filter module 3 from the handle 33. In a safe area, the filter plate 32 is thoroughly cleaned using a high-pressure water gun or brush. After cleaning, it is inserted back into the filter module 3 and the "L"-shaped rotating rod 351 is rotated to lock it, so that the spring 353 and the flexible rubber pad 355 restore the pressure on the filter plate 32. At this time, the system returns to standby mode, ready for the next switch.

[0026] This invention uses a three-way valve to control the operation of the filter modules on the first and second branch pipes respectively. By switching channels, it ensures the high availability of the mud filtration system and improves the pure drilling time and operational efficiency of the drilling equipment. The wedge-shaped filter plate cooperates with the inverted trapezoidal guide groove and is locked in place by a locking mechanism, improving the airtightness between the filter plate and the filter module. The operator can disassemble the filter plate by manually rotating the locking mechanism, simplifying the filter disassembly and cleaning process and shortening the operation time.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easy-to-clean suction filter screen for a mud pump used in core drilling rigs, characterized in that: Includes a mud pump (1) and a three-way valve (2) connected to the mud pump (1). The main outlet pipe (23) of the three-way valve (2) is connected to the flange of the mud pump (1). The two sides of the three-way valve (2) are respectively connected to a first branch pipe (21) and a second branch pipe (22). The three-way valve (2) is provided with a control valve handle (25). Each of the first branch pipe (21) and the second branch pipe (22) is provided with a filter module (3). The filter module (3) is provided with a guide groove (31) and a matching filter plate (32). The filter plate (32) is detachably installed in the guide groove (31). The guide groove (31) is fixedly provided with a groove sealing layer (311), and the outer edge of the filter plate (32) is fixedly provided with a filter plate sealing layer (321).

2. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 1, characterized in that: The cross-section of the guide groove (31) is an inverted trapezoid, and the filter plate (32) is wedge-shaped and matches the guide groove (31).

3. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 1, characterized in that: Each of the filter modules (3) has a locking mechanism (35) on both sides of its top, and the locking mechanism (35) is located above both ends of the filter plate (32).

4. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 3, characterized in that: The locking mechanism (35) includes an "L"-shaped rotating rod (351) and a "Z"-shaped fixing buckle (352). The "L"-shaped rotating rod (351) is rotatably connected to the filter module (3), and the bottom of the "Z"-shaped fixing buckle (352) is fixedly connected to the filter module (3) to ensure that the "L"-shaped rotating rod (351) is engaged in the "Z"-shaped fixing buckle (352) after rotation.

5. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 4, characterized in that: A spring (353) is fixedly connected to the lower middle section of the "L"-shaped rotating rod (351).

6. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 5, characterized in that: A flexible rubber pad (355) is fixedly connected to the bottom of the spring (353), and the flexible rubber pad (355) is in contact with the top of the filter plate (32).

7. The easy-to-clean suction filter screen of the mud pump for core drilling rig according to claim 6, characterized in that: A handle (33) is fixedly connected to the top center of the filter plate (32).

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