Portable field heavy sand elutriation shaking table

By introducing a water circulation mechanism and buffer components into the heavy sand washing shaking table, the problem of water resources that cannot be recycled after washing is solved, realizing the recycling of water resources and improving the stability of the equipment, reducing costs and extending the equipment life.

CN223570907UActive Publication Date: 2025-11-21中国建筑材料工业地质勘查中心山东总队
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Patent Information

Application Number
CN202423007634.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-21
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing heavy sand washing shaking tables cannot effectively recycle water resources after washing, resulting in high water consumption, increased costs, and non-compliance with the concept of energy conservation and environmental protection, especially in field operations.

Method used

A portable field heavy sand washing shaker was designed, which includes a water circulation mechanism. The washing water is recycled through a filter box, a water pump and a sedimentation tank, and the equipment vibration is reduced by a buffer component to extend the equipment life.

Benefits of technology

This enables the recycling of rinsing water, reduces water waste, lowers operating costs, and improves the stability and lifespan of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of beneficiation shaking tables, and discloses a portable field heavy sand elutriation shaking table which comprises a machine frame, a plurality of supporting rods are fixedly connected to the top of the machine frame, sliding blocks are arranged at the top ends of the supporting rods, a table body is arranged above the machine frame, and the table body is arranged on the machine frame. The bottom of the table body is connected with a plurality of supporting rods through cooperation of sliding rails and sliding blocks, a plurality of bed strips are arranged on the surface of the table body, a buffering assembly is arranged at the bottom of the table body and used for reducing impact force borne by equipment, and a driving mechanism is arranged at the right end of the top of the rack and used for providing driving force for shaking of the table body. According to the washing machine, water is reused after being filtered, circulation of washing water is achieved, use of water resources is reduced, waste of the water resources is effectively avoided, meanwhile, the filter screen can be rapidly detached, the filter screen can be conveniently cleaned or replaced, the filter screen is prevented from being blocked, the filtering effect is prevented from being affected, and meanwhile the maintenance efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mineral separation shaking table, especially to a portable field heavy sand washing shaking table. BACKGROUND

[0002] Heavy sand washing is a crucial work in the field of geological exploration and mineral resources development, and its main purpose is to separate valuable heavy sand minerals such as gold, cassiterite and magnetite from a large amount of sand or other geological samples. The accuracy and efficiency of heavy sand washing directly affect the subsequent mineral analysis, resource assessment and development plan. In actual operation, heavy sand washing needs to be assisted by a washing shaking table to improve the efficiency of washing.

[0003] The existing heavy sand washing shaking table is usually composed of a bed surface, a rack, a transmission device, a feeding device and a water supply device. Its principle is mainly to separate and sort according to the difference in specific gravity under the combined action of water flow and bed surface shaking. The bed surface is generally installed at an angle. The transmission device drives the bed surface to make reciprocating asymmetric motion. The feeding device uniformly distributes the heavy sand-containing slurry at one end of the bed surface, and the water supply device provides water flow. The mineral particles in the slurry are subjected to the combined action of water flow force, inertia force generated by bed surface shaking and self-gravity. The mineral particles with larger specific gravity are enriched in a specific area of the bed surface, and the gangue minerals with smaller specific gravity are carried away by the water flow.

[0004] However, a large amount of water needs to be continuously provided for washing and sorting during heavy sand washing. These waters are usually directly discharged after completing a washing, and cannot be effectively recycled and reused, which leads to a large consumption of water resources in heavy sand washing operations, increases operation costs, and does not conform to the current energy-saving and environmental protection development concept. Especially in the field and other operation environments where water resources are relatively scarce, the problem of water waste is more prominent, which seriously restricts the continuous operation of heavy sand washing. Therefore, a portable field heavy sand washing shaking table is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a portable field heavy sand washing shaking table, which aims to improve the problem that the water is directly discharged after completing the washing in the prior art, cannot be effectively recycled and reused, leads to a large consumption of water resources, increases costs and does not conform to the energy-saving and environmental protection concept.

[0006] To achieve the above object, the utility model provides the following technical scheme: A portable field heavy sand elutriation shaking table, including frame, the top of frame is fixedly connected with a plurality of support rods, the top of support rod is provided with sliding block, the top of frame is provided with table body, the bottom of table body is connected with a plurality of support rods through the cooperation of slide rail and sliding block, the surface of table body is provided with a plurality of bed bars, the bottom of table body is provided with buffer assembly, is used to reduce the impact force that equipment receives, the top right end of frame is provided with drive mechanism, is used to provide drive force for the shaking of table body, the top of frame is provided with water circulation mechanism away from drive mechanism one end, is used to circulate and use the water of elutriation,

[0007] The water circulation mechanism includes a filter box, the filter box is fixedly connected to the top of the frame away from the drive mechanism, the top of the frame is installed with a water pump near the filter box, the input end of the water pump is fixedly connected with one side of the filter box, the output end of the water pump is fixedly connected with a return pipe, the other side of the filter box is connected with a sedimentation tank through a pipeline, the sedimentation tank is arranged directly below the front side of the table body, and a filter screen is installed in the filter box through a mounting assembly.

[0008] Further, the mounting assembly includes a movable block, a limiting groove is formed in the inside of the filter box, the movable block is slidably connected in the inside of the limiting groove, one side of the movable block is fixedly connected with a pull rod, the other side of the movable block is fixedly connected with a clamping block, a clamping groove is formed in the outside of the filter screen, and the clamping groove is clamped with the adjacent side clamping block.

[0009] Further, the pull rod is externally sleeved with a reset spring, one end of the reset spring is fixedly connected to the outer wall of the movable block, and the other end of the reset spring is fixedly connected to the inner wall of the limiting groove.

[0010] Further, the buffer assembly includes a moving block, the moving block is slidably connected to the middle part of the bottom end of the table body, one side of the moving block is fixedly connected with a buffer spring, and the other side of the bottom of the table body is fixedly connected with a fixed block.

[0011] Further, the top end of the middle part of the frame is fixedly connected with an inclined block, the outer wall of the inclined block is fixedly connected with one end of the buffer spring, the right side of the bottom of the table body is fixedly connected with a limiting block, and the fixed connecting rod outside the limiting block is in contact with the inclined block.

[0012] Further, the drive mechanism includes a transmission box, the transmission box is fixedly connected to the top of the end of the frame away from the water pump, a motor is installed at the end of the frame near the transmission box, and the output end of the motor is respectively connected with belt pulleys with different diameters on the outside of the transmission box, and the two belt pulleys are connected through a belt.

[0013] Further, the inside of the transmission box is connected with an eccentric wheel through a rotating shaft, the other end of the rotating shaft is connected with a belt pulley close to the outside of the transmission box, the outside of the eccentric wheel is rotationally connected with a rotating rod, the other side of the rotating rod is rotationally connected with a connecting rod, one end of the connecting rod extends to the outside of the transmission box and is connected with one side of the table body through a connecting piece.

[0014] Further, the top rear side of the table body is fixedly connected with a flushing groove, the top middle of the flushing groove is fixedly connected with a water supply groove, and the right end top of the flushing groove is fixedly connected with a mineral supply groove.

[0015] The utility model has the advantages of the following:

[0016] 1. In the utility model, when washing heavy sand, the water used for washing can be collected through the sedimentation tank, then the water can be reused after filtration under the operation of the water pump, realizing the recycling of the water used for washing, thereby reducing the use of water resources and effectively avoiding the waste of water resources. When the filter screen needs to be cleaned, the clamping block can be separated from the clamping groove by pulling the pull rod, thereby realizing the quick disassembly of the filter screen, facilitating the cleaning or replacement of the filter screen, preventing the filter screen from being blocked and affecting the filtering effect, and improving the maintenance efficiency.

[0017] 2. In the utility model, during the swinging of the table body, the moving block at the bottom moves, when the swinging reaches a certain degree, the buffer spring is extruded and shrunk by the inclined block, thereby absorbing part of the impact force generated during the swinging of the table body and reducing the vibration and impact received by the equipment. The cooperation of the fixing block and the limiting block can limit the maximum range of the swinging of the table body, prevent the swinging amplitude of the table body from being too large to cause damage to the equipment, help maintain the stability of the table body movement, and prolong the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of a portable field heavy sand washing shaking table is provided for the utility model;

[0019] Figure 2 A table body structure schematic view of a portable field heavy sand washing shaking table is provided for the utility model;

[0020] Figure 3 A rack structure schematic view of a portable field heavy sand washing shaking table is provided for the utility model;

[0021] Figure 4 A transmission box structure schematic view of a portable field heavy sand washing shaking table is provided for the utility model;

[0022] Figure 5 A filter box structure schematic view of a portable field heavy sand washing shaking table is provided for the utility model;

[0023] Figure 6 For Figure 5 Enlarged view at A in the middle;

[0024] Figure 7 The utility model provides a portable field heavy sand washing shaking table's filter screen structure schematic view.

[0025] Legend:

[0026] 1, rack; 2, table body; 3, flush water tank; 4, water supply tank; 5, give ore tank; 6, drive mechanism; 601, transmission box; 602, motor; 603, belt pulley; 604, eccentric wheel; 605, rotating rod; 606, connecting rod; 7, bed bar; 8, water circulation mechanism; 801, water pump; 802, filter box; 803, sedimentation tank; 804, backflow pipe; 805, filter screen; 9, mounting assembly; 901, limit slot; 902, movable block; 903, pull rod; 904, reset spring; 905, clamping block; 906, clamping groove; 10, support rod; 11, inclined surface block; 12, moving block; 13, buffer spring; 14, limit block; 15, fixed block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] With reference to Figure 1 and Figure 2 and Figure 4The utility model provides a kind of embodiment: a kind of portable field heavy sand washing shaking table, including rack 1, rack 1 is the basic support structure of entire shaking table, provides the stable mounting platform for the other components of equipment, the top of rack 1 is fixedly connected with multiple support bars 10, the top of support bar 10 is provided with sliding block, the top of rack 1 is provided with table body 2, the bottom of table body 2 is connected with multiple support bars 10 by the cooperation of slide rail and sliding block, support bar 10 plays the role of supporting table body 2, and by the cooperation of sliding block and slide rail, the connection between the two is realized, can make table body 2 can realize left and right movement operation, help heavy sand washing, the surface of table body 2 is provided with multiple bed bars 7, multiple bed bars 7 are gradually increasing design from inside to outside, while table body 2 is right trapezoidal shape, and then in washing process, ore pulp flows on table body 2, bed bar 7 can change the flow direction and speed of ore pulp, make heavy sand under the action of gravity and water flow, according to its specific gravity and granularity is different, realize layering and separation on table body 2, to improve the washing efficiency of heavy sand, the top rear side of table body 2 is fixedly connected with flushing groove 3, the top middle part of flushing groove 3 is fixedly connected with water supply groove 4, the top right end of flushing groove 3 is fixedly connected with mineral supply groove 5, so when washing can ensure that ore pulp and water can be evenly distributed when entering table body 2, is favorable to the effective washing of heavy sand, the bottom of table body 2 is provided with buffer assembly, for reducing the impact force that equipment receives, the top right end of rack 1 is provided with driving mechanism 6, for providing driving force to the shaking of table body 2, the end of rack 1 away from driving mechanism 6 is provided with water circulation mechanism 8, for recycling use to washing water, driving mechanism 6 includes transmission case 601, transmission case 601 is fixedly connected at the top of one end of rack 1 away from water pump 801, motor 602 is installed at the end of rack 1 close to transmission case 601, the output end of motor 602 is connected with pulley 603 of different diameters outside transmission case 601 respectively, two pulleys 603 are connected by belt, the inside of transmission case 601 is connected with eccentric wheel 604 by pivot, the other end of pivot is connected with pulley 603 close to the outside of transmission case 601, the power transmission between two pulleys 603 can be realized by belt, the outside of eccentric wheel 604 is rotatably connected with rotating rod 605, the other side of rotating rod 605 is rotatably connected with connecting rod 606, the one end of connecting rod 606 extends to the outside of transmission case 601 and is connected with one side of table body 2 by connecting piece, while connecting rod 606 and connecting piece are rotatably connected, two pulleys 603 can transmit the power of motor 602 to eccentric wheel 604 under the connection of belt, and eccentric wheel 604 can convert the power of motor 602, drive rotating rod 605 to rotate constantly, to make connecting rod 606 reciprocating move, and drive table body 2 to swing left and right under the connection of connecting piece, realize the washing operation of heavy sand;

[0029] ReferFigure 2 The water circulating mechanism 8 comprises a filter box 802 fixedly connected to the top of the rack 1 away from the driving mechanism 6, which can filter the circulating water for subsequent use. A water pump 801 is installed on the top of the rack 1 near the filter box 802, which serves as the driving source of water circulation and can realize water transfer. The input end of the water pump 801 is fixedly connected to one side of the filter box 802, and the output end of the water pump 801 is fixedly connected with a return pipe 804, which completes the delivery of filtered water. The other side of the filter box 802 is connected with a sedimentation tank 803 through a pipeline. The washed water can fall into the sedimentation tank 803 for sedimentation. The large particles in the water will settle at the bottom of the sedimentation tank 803, thereby facilitating subsequent water circulation. The sedimentation tank 803 is arranged directly below the front side of the table body 2. A filter screen 805 is installed in the filter box 802 through a mounting assembly 9. The filter screen 805 can filter the water to reduce the influence of impurities on the operation of the equipment and prolong the service life of the equipment.

[0030] Specifically, when heavy sand washing is performed, the motor 602 can be started to drive the belt pulley 603 connected thereto to rotate. Since the belt pulley 603 at the output end of the motor 602 and the belt pulley 603 outside the transmission box 601 are connected by a belt, and the diameters of the two belt pulleys 603 are different, this transmission structure realizes power transmission and speed adjustment. Then, the belt pulley 603 outside the transmission box 601 rotates and drives the eccentric wheel 604 inside it to rotate, which drives the rotating rod 605 to move, so that the connecting rod 606 drives the connecting piece to move back and forth, and then the connecting piece pulls the table body 2 to swing left and right. At the same time that the table body 2 swings, the ore pulp is injected into the flushing groove 3 through the ore tank 5, and water is added to the flushing groove 3 through the water tank 4. At this time, the water and the ore pulp are mixed in the flushing groove 3, and then flow to the surface of the table body 2 through the through hole on the side of the flushing groove 3. The bed bars 7 on the surface of the table body 2 affect the flow path and speed of the ore pulp on the table body 2. Under the continuous left and right swinging of the table body 2 and the impact of the water flow, the heavy sand in the ore pulp will be separated and layered on the table body 2 according to the different specific gravity and particle size, completing the heavy sand washing process. The relatively fine minerals will be concentrated in the upper left corner of the table body 2, and the larger minerals and impurities will fall from the front side of the table body 2. At the same time, during the heavy sand washing process, the water used to flush the ore pulp flows down from one side of the table body 2 and falls into the sedimentation tank 803 arranged directly below the front side of the table body 2. When it is necessary to recycle the washing water, the water pump 801 can be started to extract the relatively clear water inside the sedimentation tank 803, so that the water enters the filter box 802 through the pipeline. The filter screen 805 installed in the filter box 802 filters the impurities in the water. The filtered water is delivered through the return pipe 804 and flows out from above the water tank 4, realizing the recycling of the washing water and reducing the waste of water resources.

[0031] Referring to Figure 5 - Figure 7 The mounting assembly 9 comprises a movable block 902, the inside of the filter box 802 is provided with a limiting groove 901, the movable block 902 is slidingly connected in the inside of the limiting groove 901, the limiting groove 901 limits the movement of the movable block 902, keeps the stability of the structure, one side of the movable block 902 is fixedly connected with a pull rod 903, the other side of the movable block 902 is fixedly connected with a clamping block 905, the outside of the filter screen 805 is provided with a clamping groove 906, the clamping groove 906 is clamped with the adjacent one side clamping block 905, through the clamping of the clamping block 905 and the clamping groove 906, the fixing of the filter screen 805 is realized, the outside of the pull rod 903 is sleeved with a reset spring 904, one end of the reset spring 904 is fixedly connected with the outer wall of the movable block 902, the other end of the reset spring 904 is fixedly connected with the inner wall of the limiting groove 901, the reset spring 904 can reset the movable block 902 when the filter screen 805 is installed, and then the clamping block 905 and the clamping groove 906 are clamped.

[0032] Specifically, when the filter screen 805 needs to be cleaned or replaced, the pull rod 903 can be pulled, so that the pull rod 903 drives the movable block 902 to slide in the limiting groove 901, the reset spring 904 is contracted, the clamping block 905 is separated from the clamping groove 906, so that the filter screen 805 can be conveniently taken out from the inside of the filter box 802 for operation, and then the filter screen 805 can be quickly cleaned or replaced, so that the effect of the filter is prevented from being affected by blockage, and the maintenance efficiency is improved.

[0033] Referring to Figure 3 The buffer assembly comprises a moving block 12, the moving block 12 is slidingly connected in the middle part of the bottom end of the table body 2, one side of the moving block 12 is fixedly connected with a buffer spring 13, the buffer spring 13 can absorb part of the impact force generated when the table body 2 swings, reduces the vibration and impact received by the equipment, the other side of the bottom of the table body 2 close to the moving block 12 is fixedly connected with a fixed block 15, the middle top of the rack 1 is fixedly connected with an inclined block 11, the outer wall of the inclined block 11 is fixedly connected with one end of the buffer spring 13, the right side of the bottom of the table body 2 close to the inclined block 11 is fixedly connected with a limiting block 14, the fixed connecting rod outside the limiting block 14 is in contact with the inclined block 11, the fixed block 15 and the limiting block 14 limit the maximum range of the swing of the table body 2, prevent the equipment from being damaged due to the too large swing amplitude of the table body 2, and also help to keep the stability of the movement of the table body 2 and prolong the service life of the equipment.

[0034] Specifically, when the table body 2 swings left and right, the moving block 12 will be moved, and the buffer spring 13 on one side of the moving block 12 will be extruded by the inclined block 11 fixedly connected to the middle top of the rack 1. The buffer spring 13 absorbs the impact force generated by the swinging of the table body 2 by stretching and contracting. At the same time, the limiting block 14 near the right side of the inclined block 11 and the fixed block 15 near the other side of the moving block 12 on the bottom of the table body 2 cooperate with each other to limit the maximum range of the swinging of the table body 2, prevent the swinging amplitude of the table body 2 from being too large to cause damage to the equipment, ensure the stable operation of the equipment, and prolong the service life of the equipment.

[0035] Working principle: when using this rocker, the rotation of the motor 602 drives the connected belt pulley 603 to rotate, and then under the connection of the belt, the belt pulley 603 connected to the outside of the transmission box 601 rotates, which can drive the eccentric wheel 604 inside the transmission box 601 to rotate. At this time, the eccentric wheel 604 will drive the rotating rod 605 to move, so that the connecting rod 606 drives the connecting piece to move back and forth, and then under the action of the connecting piece, the table body 2 swings left and right. At this time, the ore pulp can be injected into the flushing groove 3 through the ore chute 5, and water can be added to the flushing groove 3 through the water tank 4. Under the impact of the water flow, the ore pulp will flow to the surface of the table body 2 through the through hole on the side of the flushing groove 3, and under the continuous swinging of the table body 2, the ore pulp is washed and separated to obtain heavy sand. The water used for washing the ore pulp can fall into the sedimentation tank 803 after flowing down on one side of the table body 2. At this time, the relatively clean water inside the sedimentation tank 803 can be pumped out by the operation of the water pump 801. The water enters the filter box 802 through the pipeline, and after filtering out the impurities through the filter screen 805, it can flow out from above the water tank 4 through the backflow pipe 804, thereby realizing the operation of water circulation. The washing water can be reused, reducing the waste of water resources and effectively saving the washing water. At the same time, by pulling the pull rod 903, the pull rod 903 drives the movable block 902 to slide in the limiting groove 901, and then exerts pressure on the return spring 904 to make it contract, and drives the clamping block 905 to separate from the clamping groove 906, thereby taking out the filter screen 805 from the inside of the filter box 802, which is convenient for cleaning or replacing. It prevents clogging after a long time of use, which affects the filtering effect. When the table body 2 swings left and right, the moving block 12 will move. At this time, the buffer spring 13 on one side of the moving block 12 will be extruded by the inclined block 11, thereby pushing the moving block 12 to slide. When it moves to the maximum amplitude, the buffer spring 13 will contract under force, and the maximum range of swinging is limited by the cooperation of the limiting block 14 and the fixed block 15, thereby reducing the impact force and vibration when the table body 2 swings, reducing the impact on the entire equipment, and prolonging the service life of the equipment.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A portable field heavy sand washing shaker, comprising a frame (1), characterized in that: The top of the frame (1) is fixedly connected with multiple support rods (10), and the top of the support rods (10) is provided with a slider. A table (2) is provided above the frame (1). The bottom of the table (2) is connected to multiple support rods (10) through the cooperation of slide rail and slider. Multiple bed strips (7) are provided on the surface of the table (2). A buffer component is provided at the bottom of the table (2) to reduce the impact force on the equipment. A drive mechanism (6) is provided at the top right end of the frame (1) to provide driving force for the shaking of the table (2). A water circulation mechanism (8) is provided at the top of the frame (1) away from the drive mechanism (6) to circulate the washing water. The water circulation mechanism (8) includes a filter box (802), which is fixedly connected to the top of the frame (1) away from the drive mechanism (6). A water pump (801) is installed on the top of the frame (1) near the filter box (802). The input end of the water pump (801) is fixedly connected to one side of the filter box (802). The output end of the water pump (801) is fixedly connected to a return pipe (804). The other side of the filter box (802) is connected to a sedimentation tank (803) through a pipe. The sedimentation tank (803) is located directly below the front side of the table (2). A filter screen (805) is installed inside the filter box (802) through an installation assembly (9).

2. The portable field heavy sand washing shaker according to claim 1, characterized in that: The installation component (9) includes a movable block (902). A limiting groove (901) is provided inside the filter box (802). The movable block (902) is slidably connected inside the limiting groove (901). A pull rod (903) is fixedly connected to one side of the movable block (902). A locking block (905) is fixedly connected to the other side of the movable block (902). A locking groove (906) is provided on the outer side of the filter screen (805). The locking groove (906) engages with the locking block (905) on the adjacent side.

3. The portable field heavy sand washing shaker according to claim 2, characterized in that: A return spring (904) is sleeved on the outside of the pull rod (903). One end of the return spring (904) is fixedly connected to the outer wall of the movable block (902), and the other end of the return spring (904) is fixedly connected to the inner wall of the limiting groove (901).

4. The portable field heavy sand washing shaker according to claim 1, characterized in that: The buffer assembly includes a movable block (12), which is slidably connected to the middle of the bottom end of the table body (2). A buffer spring (13) is fixedly connected to one side of the movable block (12), and a fixed block (15) is fixedly connected to the bottom of the table body (2) on the other side near the movable block (12).

5. A portable field heavy sand washing shaker according to claim 1, characterized in that: A ramp block (11) is fixedly connected to the top of the middle part of the frame (1). The outer wall of the ramp block (11) is fixedly connected to one end of the buffer spring (13). A limit block (14) is fixedly connected to the bottom of the table body (2) near the right side of the ramp block (11). The connecting rod fixed outside the limit block (14) is in contact with the ramp block (11).

6. A portable field heavy sand washing shaker according to claim 1, characterized in that: The drive mechanism (6) includes a transmission box (601), which is fixedly connected to the top of the frame (1) away from the water pump (801). A motor (602) is installed on the end of the frame (1) near the transmission box (601). The outer side of the transmission box (601) and the output end of the motor (602) are respectively connected to pulleys (603) of different diameters. The two pulleys (603) are connected by a belt.

7. A portable field heavy sand washing shaker according to claim 6, characterized in that: The transmission box (601) is connected to an eccentric wheel (604) via a rotating shaft. The other end of the rotating shaft is connected to a pulley (603) near the outside of the transmission box (601). A rotating rod (605) is rotatably connected to the outside of the eccentric wheel (604). A connecting rod (606) is rotatably connected to the other side of the rotating rod (605). One end of the connecting rod (606) extends to the outside of the transmission box (601) and is connected to one side of the table body (2) via a connector.

8. A portable field heavy sand washing shaker according to claim 1, characterized in that: A flushing trough (3) is fixedly connected to the top rear side of the table body (2), a water supply trough (4) is fixedly connected to the top middle of the flushing trough (3), and a ore supply trough (5) is fixedly connected to the top right end of the flushing trough (3).