An automatic sampling device for gypsum residue

Abstract

This utility model discloses an automatic gypsum slag sampling device, relating to the field of waste acid treatment technology. It includes a transmission component and a sampling component. The transmission component includes a support frame, a transmission element, and multiple sets of pushing elements. The sampling component includes a sampling element and a sealing element. The sampling element has a sample storage cavity inside. Under external force, the pushing elements reciprocate radially along the transmission element, causing the sampling element to reciprocate radially along the transmission element and separate from the sealing element to open or close the sample storage cavity. The transmission element drives multiple sets of pushing elements and the sampling element to rotate. When the pushing element pushes the lower shell, the sampling element is inserted into the gypsum slag. The rotation of the transmission element drives the sampling element to rotate, thus completing the sampling. The sealing element then closes the port of the sampling element. Driven by the transmission element, pushing elements and sampling elements at different positions rotate to enter the sampling area, thereby achieving interval sampling. This eliminates the need for real-time manual sampling and can cover different batches of gypsum slag for sampling, preventing injury to sampling personnel.

Description

Technical Field

[0001] This utility model relates to the field of waste acid treatment technology, specifically to an automatic sampling device for gypsum slag. Background Technology

[0002] In existing technologies, gypsum residue sampling mainly relies on manual operation:

[0003] After the gypsum residue is dewatered by a plate and frame filter press, it forms a solid residue. Operators need to wear protective equipment and manually use sampling tools (such as shovels or samplers) to collect samples from the filter press outlet. The samples are then sent to the laboratory for analysis of heavy metal content and pH value, and the timing depends on the personnel's experience.

[0004] Problems with existing technology:

[0005] Inefficient: Manual sampling is time-consuming (approximately 10-15 minutes each time), affecting production continuity and failing to cover all batches, resulting in incomplete data;

[0006] High safety risks: Direct contact with alkaline gypsum residue (pH value often higher than 10) can easily cause chemical burns or dust inhalation hazards.

[0007] Insufficient accuracy: Human factors (such as sampling location deviation or sample contamination) lead to large fluctuations in test results, affecting the evaluation of waste acid treatment effectiveness;

[0008] High cost: It requires dedicated personnel to operate, which increases labor and protective equipment expenses. Utility Model Content

[0009] The main purpose of this utility model is to provide an automatic gypsum residue sampling device to solve the problem of inconvenient gypsum residue sampling in the present invention.

[0010] To achieve the above objectives, this utility model provides an automatic gypsum residue sampling device, comprising:

[0011] The transmission assembly includes a support frame and a transmission component rotatably mounted on the support frame; the support frame is provided with a connecting component; the connecting component is detachably connected to an external plate and frame filter press; the transmission component is provided with multiple sets of pushing components at intervals, and the multiple sets of pushing components are arranged circumferentially around the center of the transmission component;

[0012] The sampling assembly includes a sampling component connected to a pusher and a sealing component disposed on a transmission component; the sampling component has a sample storage cavity inside; the pusher moves radially back and forth along the transmission component under the action of an external force, so as to drive the sampling component to move radially back and forth along the transmission component and separate from the sealing component to open or close the sample storage cavity; the transmission component rotates under the action of an external force, so as to drive the sampling component to rotate around the center of the transmission component.

[0013] As a further improvement of this utility model, a support plate is provided inside the support frame; the transmission component includes a transmission plate rotatably mounted on the support plate and a drive motor connected to the transmission plate; the drive motor drives the transmission plate to rotate under the action of external force.

[0014] As a further improvement of this utility model, the pushing member includes multiple sets of electric push rods arranged circumferentially along the center of the transmission disk; the output end of the electric push rod faces the outer edge of the transmission disk.

[0015] As a further improvement of this utility model, the sampling component includes a sampling box connected to the output end of the electric push rod; the sampling box is hollow to form a sample storage cavity; the sealing component includes a sealing plate disposed on the transmission disk; the sealing plate is clearance-fitted with the port of the sample storage cavity.

[0016] As a further improvement of this utility model, the sampling box has an oblique opening at its opening end, and the sampling box and the electric push rod are inclined to face each other so that the opening end of the sampling box faces the ground.

[0017] As a further improvement of this utility model, an inner box is movably provided inside the sampling box; the inner box has the same shape as the sampling box.

[0018] The beneficial effects of this utility model are reflected in:

[0019] By setting up a transmission component to drive multiple sets of pushing and sampling components to rotate, the sampling component is inserted into the gypsum residue when the pushing component pushes the lower shell, and the rotation of the transmission component drives the sampling component to rotate, thereby completing the sampling. The port of the sampling component is sealed by a sealing component. Driven by the transmission component, the pushing and sampling components at different positions rotate to enter the sampling, thereby realizing interval sampling. It eliminates the need for real-time manual sampling and can cover different batches of gypsum residue for sampling, avoiding injury to the sampling personnel during sampling. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic gypsum residue sampling device according to the present invention.

[0021] Figure 2 This is a schematic diagram of the back structure of an automatic gypsum residue sampling device according to the present invention;

[0022] Figure 3 This is a schematic diagram of the installation structure of the sampling component of an automatic gypsum slag sampling device according to the present invention.

[0023] Figure 4 This is a schematic diagram of the sampling component structure of an automatic gypsum slag sampling device according to the present invention;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Support frame; 2. Transmission component; 201. Transmission disc; 202. Drive motor; 3. Connecting component; 301. Connecting plate; 302. Fixing hole; 4. Pushing component; 401. Electric push rod; 5. Sampling component; 501. Sampling box; 6. Sealing component; 601. Sealing plate; 7. Sample storage chamber; 8. Support disc; 9. Telescopic leg; 10. Screw hole; 11. Adjustment hole; 12. Screw; 13. Anchor bolt; 14. Transmission shaft; 15. Driven gear; 16. Drive gear; 17. Connecting sleeve; 18. Connecting stud; 19. Angled opening; 20. Inner box; 21. Limiting stud; 22. Stop block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In one embodiment, see Figure 1 The present invention relates to an automatic gypsum residue sampling device, comprising a transmission component and a sampling component.

[0028] The transmission assembly includes a support frame 1 and a transmission component 2 rotatably mounted on the support frame 1. The support frame 1 is provided with a connector 3, which is detachably connected to an external plate and frame filter press. The transmission component 2 is provided with multiple sets of pushing components 4 at intervals, which are arranged circumferentially around the center of the transmission component 2. The sampling assembly includes a sampling component 5 connected to the pushing component 4 and a sealing component 6 mounted on the transmission component 2. The sampling component 5 has a sample storage chamber 7 inside. Under the action of external force, the pushing component 4 moves reciprocally along the radial direction of the transmission component 2 to drive the sampling component 5 to move reciprocally along the radial direction of the transmission component 2 and separate from the sealing component 6 to open or close the sample storage chamber 7. The transmission component 2 rotates under the action of external force to drive the sampling component 5 to rotate around the center of the transmission component 2.

[0029] Further, see Figure 1 , 2 The support frame 1 is equipped with a support plate 8. The transmission component 2 includes a transmission plate 201 rotatably mounted on the support plate 8 and a drive motor 202 connected to the transmission plate 201. The drive motor 202 drives the transmission plate 201 to rotate under the action of external force.

[0030] Preferably, the support frame 1 has a "U" shaped structure and is welded from hollow rectangular steel pipes. The bottom end of the support frame 1 is provided with a telescopic leg 9, and the telescopic leg 9 is provided with a screw hole 10. The bottom end of the support frame 1 is provided with multiple sets of adjustment holes 11 at intervals. The adjustment hole is provided with a screw 12 that is threadedly connected to the screw hole 10. By pulling out or pushing the telescopic leg 9 into the support frame 1, the overall height of the support frame 1 can be adjusted. The position between the telescopic leg 9 and the support frame 1 is fixed by the screw 12 passing through the adjustment hole 11 and threadedly connecting to the screw hole 10.

[0031] Preferably, the connecting piece 3 is a connecting plate 301 set on the telescopic leg 9. The connecting plate 301 is provided with a fixing hole 302. The connecting plate 301 can be connected to the ground by passing through the fixing hole 302 with the anchor bolt 13. After the plate and frame filter press filters the gypsum slag, it usually uses a conveyor belt to transport the gypsum slag or the gypsum slag falls directly into the storage tank on the ground. For the gypsum slag that falls directly into the storage tank on the ground, the support frame 1 can be fixed to the ground with the anchor bolt 13. For the method of transporting the gypsum slag with a conveyor belt, the connecting plate 301 can be connected to the frame on both sides of the conveyor belt with bolts or welded. This connection method can be adjusted according to the site.

[0032] Preferably, the support plate 8 is fixedly connected to the support frame 1, the support plate 8 has a mounting hole in the center, the drive motor 202 adopts the stepper motor in the existing structure, and the drive motor 202 is mounted on the support plate 8 by bolts.

[0033] Preferably, both the support disk 8 and the transmission disk 201 are disc-shaped structures. The center of the transmission disk 201 is provided with a transmission shaft 14, and a bearing is provided in the mounting hole. The transmission shaft 14 passes through the inner ring of the bearing and has a driven gear 15 at its end. The output shaft of the drive motor 202 is provided with a driving gear 16 that meshes with the driven gear 15, thereby connecting the drive motor 202 to the rotating shaft. The transmission shaft 14 and the bearing can be connected by existing connection methods such as interference fit or key connection.

[0034] Further, see Figure 1 , 3 The pusher 4 includes multiple sets of electric push rods 401 arranged circumferentially along the center of the transmission disk 201, with the output end of the electric push rod 401 facing the outer edge of the transmission disk 201.

[0035] Preferably, the electric push rod 401 is connected to the transmission disc 201 by bolts.

[0036] Further, see Figure 1 , 4The sampling component 5 includes a sampling box 501 connected to the output end of the electric push rod 401. The sampling box 501 is hollow to form a sample storage cavity 7. The sealing component 6 includes a sealing plate 601 disposed on the transmission disk 201. The sealing plate 601 is clearance-fitted with the port of the sample storage cavity 7.

[0037] Preferably, the sampling box 501 is a hollow rectangular body. Under the push of the electric push rod 401, the sampling box 501 moves linearly along the radial direction of the transmission disk 201, thereby separating from the closing plate 601. After the sampling box 501 moves, it enters the gypsum residue, so that the gypsum residue can be sampled and stored in the sampling cavity through the sampling box 501.

[0038] Preferably, the outer wall of the sampling box 501 is provided with a connecting sleeve 17, and a connecting stud 18 is provided on the connecting sleeve 17 by means of threads. The end of the electric push rod 401 is provided with a through hole. After the electric push rod 401 is inserted into the connecting sleeve 17, it can be inserted into the through hole by rotating the connecting stud 18, thereby connecting the electric push rod 401 to the sampling box 501. Of course, the connection method between the electric push rod 401 and the sampling box 501 is not unique.

[0039] It should be noted that in order to control the drive motor 202 and the electric push rod 401 to work within a certain time interval, a controller and a timer are also required. The controller, timer, drive motor 202, and electric push rod 401 are electrically connected by wires. Since the electric push rod 401 needs to rotate with the transmission disk 201, a hollow channel needs to be opened in the middle of the aforementioned transmission shaft 14 for the wires to pass through. After passing through the hollow channel on the guide shaft 14 connected to the electric push rod 401, the wires are electrically connected to other wires through a conductive slip ring. The conductive slip ring is installed on the transmission disk 201 by bolts. When the electric push rod 401 rotates with the transmission disk 201, the conductive slip ring can ensure a continuous power supply to the electric push rod 401. Specifically, the controller is connected to the power supply through wires. The wires leading out of the controller are connected to the timer, drive motor 202, and electric push rod 401. Two sets of timers are set up: one set is used to control the rotation timing of the drive motor 202, and the other set is used to control the working timing of the electric push rod 401. The controller can be a microcontroller or PLC control system.

[0040] In the above setup, after the controller is powered on, it controls the interval and duration of the drive motor 202's rotation according to the time interval on the timer. The interval controls the rotation of the drive motor 202, which in turn drives the transmission disk 201 to rotate, thereby causing the electric push rods 401 and sampling boxes 501 at different positions on the transmission disk 201 to rotate and adjust their positions. The duration controls the rotation angle of the drive motor 202, thereby controlling the rotation of the transmission disk 201 so that the electric push rods 401 are vertically downward. Another set of timers controls the operation of the electric push rods 401, causing them to drive the sampling boxes 501 to move down and insert into the gypsum residue or move up to the transmission disk 201 to connect with the sealing plate 601. During sampling, the initial state of one set of electric push rods 401 on the transmission disk 201 is as follows: Vertically downwards, this can be marked as sampling group 1. During sampling, the controller controls the electric push rod 401 on sampling group 1 to move downwards. The electric push rod 401 drives the sampling box 501 to move downwards and insert into the gypsum residue. Then, the controller controls the drive motor 202 to rotate, causing the sampling box 501 inserted into the gypsum residue to rotate and collect the gypsum residue. After the sampling box 501 of sampling group 1 rotates, the adjacent sampling group 2 rotates to a vertical position. After sampling group 1 completes sampling, the controller controls the electric push rod 401 on sampling group 1 to retract and return the sampling box 501 to the transmission plate 201. The open end of the sampling box 501 is closed by the sealing plate 601, completing one sampling. The sampling method of the remaining sampling boxes 501 is the same as above, and gypsum residue samples at different time periods can be collected by controlling the sampling interval.

[0041] Further, see Figure 1 , 4 The sampling box 501 has an oblique opening 19 at its open end, and the sampling box 501 and the electric push rod 401 are inclined to each other so that the open end of the sampling box 501 faces the ground.

[0042] Preferably, the angled opening 19 of the sampling box 501 faces the electric push rod 401. After the sampling box 501 is tilted relative to the electric push rod 401, the angled opening 19 of the sampling box 501 can be inserted into the gypsum residue after the electric push rod 401 drives the sampling box 501 to move down. As the transmission disc 201 rotates and drives the sampling box 501 to rotate, the sampling box 501 will make a circular motion, which makes it easy to collect the gypsum residue.

[0043] Further, see Figure 1 , 4 An inner box 20 is movable inside the sampling box 501, and the inner box 20 has the same shape as the sampling box 501.

[0044] Preferably, the inner box 20 is a hollow rectangular body. The outer wall of the sampling box 501 is provided with a limiting screw hole 10. A limiting stud 21 is provided in the limiting screw hole 10 through a thread. By rotating the limiting stud 21 to abut against the inner box 20, the inner box 20 can be connected to the sampling box 501 to prevent the inner box 20 from falling off. After sampling, the limiting stud 21 can be loosened to facilitate the separation of the inner box 20 from the sampling box 501, thereby transferring the gypsum residue in the inner box 20 to the laboratory.

[0045] Preferably, the inner wall of the inner box 20 is provided with a stop 22, which can be pulled to quickly separate the inner box 20 from the sampling box 501.

[0046] In this embodiment, the sampling box 501 is positioned at the gypsum residue by the support frame 1. During sampling, the sampling box 501 is pushed into the gypsum residue by the electric push rod 401, and the drive motor 202 is controlled to rotate to drive the sampling box 501 to rotate and collect the gypsum residue into the sample storage chamber 7. Then, the electric push rod 401 is controlled to retract toward the transmission plate 201, so that the sampling box 501 is connected to the sealing plate 601, completing one sampling. By controlling the rotation of different groups of electric push rods 401 at intervals (the interval is set according to actual needs), the sampling box 501 connected to them is moved down, and in conjunction with the rotation of the drive motor 202, gypsum residue can be collected at different time periods.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gypsum dreg automatic sampling device, characterized by, include: The transmission assembly includes a support frame (1) and a transmission component (2) rotatably mounted on the support frame (1); the support frame (1) is provided with a connector (3); the connector (3) is detachably connected to an external plate and frame filter press; the transmission component (2) is provided with multiple sets of pushers (4) spaced apart, and the multiple sets of pushers (4) are arranged circumferentially around the center of the transmission component (2); The sampling assembly includes a sampling component (5) connected to a pusher (4) and a sealing component (6) disposed on a transmission component (2); the sampling component (5) has a sample storage cavity (7) inside; the pusher (4) moves reciprocally along the radial direction of the transmission component (2) under the action of an external force, so as to drive the sampling component (5) to move reciprocally along the radial direction of the transmission component (2) and separate from the sealing component (6) to open or close the sample storage cavity (7); the transmission component (2) rotates under the action of an external force, so as to drive the sampling component (5) to rotate around the center of the transmission component (2).

2. The automatic gypsum residue sampling device according to claim 1, characterized in that: The support frame (1) is provided with a support disk (8) inside; the transmission component (2) includes a transmission disk (201) rotatably mounted on the support disk (8) and a drive motor (202) connected to the transmission disk (201); the drive motor (202) drives the transmission disk (201) to rotate under the action of external force.

3. The automatic gypsum residue sampling device according to claim 2, characterized in that: The pusher (4) includes multiple sets of electric push rods (401) arranged circumferentially along the center of the transmission disk (201); the output end of the electric push rod (401) faces the outer edge of the transmission disk (201).

4. The automatic gypsum residue sampling device according to claim 3, characterized in that: The sampling component (5) includes a sampling box (501) connected to the output end of the electric push rod (401); the sampling box (501) is hollow inside to form a sample storage cavity (7); the sealing component (6) includes a sealing plate (601) disposed on the transmission disk (201); the sealing plate (601) is clearance-fitted with the port of the sample storage cavity (7).

5. The automatic gypsum residue sampling device according to claim 4, characterized in that: The sampling box (501) has an oblique opening (19) at its open end, and the sampling box (501) and the electric push rod (401) are inclined to each other so that the open end of the sampling box (501) faces the ground.

6. The automatic gypsum slag sampling device according to claim 5, characterized in that: An inner box (20) is movably disposed inside the sampling box (501); the inner box (20) has the same shape as the sampling box (501).

Images