Linkage sampling device for filter press

Abstract

The utility model relates to the technical field of coal slime filter pressing, specifically relates to a filter press linkage sampling device, including being located filter plate below the tail of filter press, with the fixed connection of filter press groove body, be provided with collecting tank in the groove body, collecting tank and groove body horizontal sliding connection, collecting tank is connected with the drive mechanism of drive collecting tank and reciprocate sliding in the groove body along the length direction, and the drive mechanism makes collecting tank be in two positions: when filter press end of charge, charge valve is closed, collecting tank is in the sampling position of extending into the bottom of filter press, when filter press unloading is completed, and charge valve is opened, and collecting tank is in the initial position of withdrawing from the bottom of filter press. Filter press linkage sampling device reasonable structure, safe operation, can with filter press operating state automatic linkage, high degree of automation, convenient maintenance, and durable reliable, can significantly improve the safety hidden danger and efficiency problem of traditional filter press manual sampling.

Description

Technical Field

[0001] This utility model relates to the field of coal slime filter press technology, specifically to a filter press linkage sampling device. Background Technology

[0002] In coal slime dewatering, filter presses are commonly used solid-liquid separation equipment. They use hydraulic pressure to drive filter plates to clamp filter cloth, squeezing out water from the coal slime under high pressure to obtain a filter cake with low moisture content. To ensure the stability of the production process and product quality, it is necessary to periodically sample and analyze the coal slime filter cake after unloading from the filter press to test indicators such as moisture content, ash content, and particle size distribution, providing a basis for adjusting subsequent production parameters.

[0003] However, most coal slime filter presses currently lack automatic sampling mechanisms, and the sampling process generally relies on manual operation. Traditional sampling methods typically involve manually pressing the emergency stop button during filter press unloading, forcibly prying open the filter plates using hooks or other auxiliary tools, and then having a worker manually retrieve a portion of the coal slime sample from between the plates. This sampling method has significant shortcomings and safety hazards. First, manual sampling points are random and singular, usually located at a single filter plate, failing to represent the average parameters of the entire filter press's cake, resulting in significant errors in the test data and affecting the accuracy of quality analysis results. Second, the sampling process requires manual proximity to the operating filter press, posing safety risks such as being pinched, burned, or crushed, constituting a serious violation of operating procedures and easily leading to accidents.

[0004] Furthermore, manual sampling suffers from high labor intensity, low efficiency, and poor working conditions. Each sampling requires stopping the filter press, increasing operational complexity and impacting continuous production efficiency. With the increasing automation of coal slime filter press systems, traditional manual sampling methods can no longer meet the requirements of modern mines for safe, accurate, and continuous production.

[0005] Therefore, there is an urgent need for a device that can be linked with the operation of the filter press and automatically collect samples to achieve unmanned sampling, improve sample representativeness, reduce safety risks, and thus ensure the safety and stability of the coal slime filter press production process. Utility Model Content

[0006] To address the problems of significant safety hazards, limited sampling points, poor representativeness, and cumbersome manual operation associated with existing coal slime filter press sampling techniques, this invention provides a filter press-linked sampling device. This device features a reasonable structure, reliable operation, and automatic linkage with the filter press's operating status, achieving automation and safety throughout the entire sampling process. The specific technical solution is as follows: A filter press-linked sampling device includes a trough located below the filter plate at the tail end of the filter press and fixedly connected to the filter press. A collection trough is disposed within the trough and is horizontally slidably connected to the trough. The collection trough is connected to a drive mechanism that drives it to reciprocate along its length within the trough. The drive mechanism positions the collection trough in two positions: when the filter press feeding is complete and the feed valve is closed, the collection trough is in a sampling position extending into the bottom of the filter press; when the filter press unloads and the feed valve is opened, the collection trough is in its initial position, retracting from the bottom of the filter press. This filter press-linked sampling device has a simple structure, enables the collection trough to be linked with the operating status of the filter press, automatically completes the sampling action, avoids manual operation, improves sampling safety and efficiency, and ensures a stable and reliable sampling position.

[0007] Furthermore, the collection trough is slidably connected to the tank body through a slider and groove, ensuring that the collection trough slides smoothly within the tank body, reducing friction and wear, and achieving smooth operation and accurate positioning.

[0008] Furthermore, limit blocks are installed on the chute to prevent the collection trough from overtraveling or impacting the trough body, ensuring safe and reliable operation and extending the life of the device.

[0009] Furthermore, a buffer pad is provided at the front end of the collection tank and the contact area between the tank body to absorb impact and vibration, reduce mechanical wear and noise, protect the collection tank and tank body structure, and improve system stability.

[0010] Furthermore, the bottom plate and side plate of the collection tank are detachably connected, which facilitates cleaning, maintenance or replacement of damaged parts, improving the maintainability and ease of use of the equipment.

[0011] Furthermore, the bottom plate and side plate of the collection tank are connected by snap-fit ​​and slot-fit, which can achieve quick assembly and disassembly, stable structure, and reduce maintenance time and operation difficulty.

[0012] Furthermore, the drive mechanism includes a cylinder, with a piston rod connected to a transmission component. The transmission component is fixedly connected to the collection tank, and the cylinder is equipped with a solenoid valve for controlling the extension and retraction movements. Pneumatic drive provides stable power, and the solenoid valve automates the extension and retraction of the collection tank, resulting in fast, reliable, and labor-saving operation while avoiding hydraulic leakage and reducing maintenance costs.

[0013] Furthermore, a connecting seat is provided on the collection tank, with a first connecting hole on the connecting seat and a second connecting hole on the transmission component. Fasteners pass through the first and second connecting holes to achieve a fixed connection between the connecting seat and the transmission component. This structure provides a stable mechanical connection, ensuring reliable transmission of driving force and guaranteeing the accuracy and repeatability of the collection tank's movements.

[0014] Furthermore, the fasteners are elastic pins, allowing the collection trough to expand and contract smoothly under vibration or slight displacement, reducing component wear and improving system stability.

[0015] Furthermore, the collection tank and tank body are made of stainless steel or high-strength wear-resistant composite materials to improve the device's corrosion resistance and wear resistance, adapt to harsh environments such as coal slime or slurry, extend the service life of the equipment, and ensure long-term stable operation.

[0016] The beneficial effects of this utility model are as follows: 1. By fixing a trough at the bottom of the filter press and installing a horizontally sliding collection trough inside the trough, the collection trough is reciprocated along the length of the trough by a cylinder drive mechanism. This allows the collection trough to automatically extend into the bottom of the filter press for sampling when the feeding is finished and the feed valve is closed, and automatically retract to the initial position when the unloading is completed and the feed valve is opened. This achieves linkage between the sampling device and the operating status of the filter press, avoids manual operation, and improves the safety and efficiency of sampling.

[0017] 2. The filter press linkage sampling device has a reasonable structure, safe operation, high degree of automation, convenient maintenance, and is durable and reliable. It can significantly improve the safety hazards and efficiency problems of manual sampling in traditional filter presses. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 in a specific implementation.

[0020] In the figure: 1. Tank; 2. Collection tank; 2-1. Side plate; 2-2. Bottom plate; 2-3. Connecting seat; 3. Drive mechanism; 3-1. Cylinder; 3-2. Transmission component; 4. Slide groove; 5. Slider; 6. Limiting block; 7. Buffer pad; 8. First connecting hole; 9. Second connecting hole; 10. Fastener. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] Example 1 like Figure 1 As shown, the filter press linkage sampling device includes a tank body 1, a collection tank 2, and a drive mechanism 3. The tank body 1 is located below the filter plate at the tail end of the filter press and is fixedly connected to the filter press. The collection tank 2 is disposed inside the tank body 1 and is horizontally slidably connected to the tank body 1. In this embodiment, a slider 5 is provided on the outer side of the bottom of the collection tank 2, and a sliding groove 4 is provided on the inner side of the bottom of the tank body 1. The sliding connection is achieved through the cooperation of the slider 5 and the sliding groove 4, and a limit block 6 is provided in the sliding groove 4 to limit the sliding range of the collection tank 2. A buffer pad 7 is provided at the contact part between the front end of the collection tank 2 and the tank body 1 to reduce the impact and wear of the collection tank 2 during the sliding process.

[0023] The bottom plate 2-2 and side plate 2-1 of the collection tank 2 are detachably connected for easy cleaning and replacement. In this embodiment, the bottom plate 2-2 and side plate 2-1 are connected by a snap-fit ​​mechanism, which is simple in structure and easy to operate.

[0024] The drive mechanism 3 includes a cylinder 3-1, whose piston rod is connected to a transmission component 3-2, which is fixedly connected to the collection tank 2. A connecting seat 2-3 is provided on the collection tank 2, with a first connecting hole 8 on the connecting seat 2-3 and a second connecting hole 9 on the transmission component 3-2. Fasteners 10 pass through the first connecting hole 8 and the second connecting hole 9 to achieve a fixed connection between the connecting seat 2-3 and the transmission component 3-2. The cylinder 3-1 is equipped with a solenoid valve for controlling the extension and retraction of the piston rod, thereby driving the collection tank 2 to slide within the tank body 1. The extension and retraction of the piston rod of the cylinder 3-1 can position the collection tank 2 in two ways: when the filter press feeding is finished and the feeding valve is closed, the collection tank 2 is in the sampling position extending into the bottom of the filter press; when the filter press unloading is completed and the feeding valve is opened, the collection tank 2 is in the initial position exiting the bottom of the filter press.

[0025] In this embodiment, the fastener 10 is an elastic pin, which allows for slight angular displacement, adapts to the vibration of the filter press during operation, and ensures a stable and reliable connection.

[0026] In this embodiment, the tank 1 and the collection tank 2 are made of stainless steel or high-strength wear-resistant composite material, which have good corrosion resistance and wear resistance, and extend the service life of the device.

[0027] During operation, when the filter press finishes feeding and the feed valve is closed, the piston rod of cylinder 3-1 extends, driving the collection tank 2 to extend into the bottom of the filter press via transmission component 3-2, enabling the collection tank 2 to accurately collect filter cake samples. When the filter press finishes unloading and the feed valve is opened, the piston rod of cylinder 3-1 retracts, driving the collection tank 2 out of the bottom of the filter press via transmission component 3-2, returning it to its initial position. Sampling personnel can then directly take samples from the collection tank 2 for testing from a safe area outside the device. The entire process does not require stopping the equipment and is highly safe.

[0028] The aforementioned filter press-linked sampling device achieves automation, precision, and safety in coal slime filter pressing sampling, improves sampling efficiency and accuracy, reduces operator risks, and has broad application prospects.

[0029] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention.

Claims

1. A filter press linkage sampling device, comprising a tank located below the filter plate at the tail end of the filter press and fixedly connected to the filter press, characterized in that, A collection trough is provided inside the tank, and the collection trough is horizontally slidably connected to the tank body. The collection trough is connected to a drive mechanism that drives the collection trough to slide back and forth along the length direction inside the tank body. The drive mechanism keeps the collection trough in two positions: when the filter press finishes feeding and the feed valve is closed, the collection trough is in the sampling position extending into the bottom of the filter press; when the filter press finishes unloading and the feed valve is opened, the collection trough is in the initial position of exiting the bottom of the filter press.

2. The filter press linkage sampling device as described in claim 1, characterized in that, The collection trough is slidably connected to the trough body via a slider and groove.

3. The filter press linkage sampling device as described in claim 1, characterized in that, Limit blocks are installed on the slide.

4. The filter press linkage sampling device as described in claim 1, characterized in that, A buffer pad is provided at the contact point between the front end of the collection tank and the tank body.

5. The filter press linkage sampling device as described in claim 1, characterized in that, The bottom plate and side plate of the collection tank are detachably connected.

6. The filter press linkage sampling device as described in claim 5, characterized in that, The bottom plate and side plate of the collection tank are connected by a snap-fit ​​mechanism.

7. The filter press linkage sampling device as described in claim 1, characterized in that, The drive mechanism includes a cylinder, the piston rod of which is connected to a transmission component, which is fixedly connected to the collection tank. The cylinder is equipped with a solenoid valve for controlling the extension and retraction movements.

8. The filter press linkage sampling device as described in claim 1, characterized in that, The collection tank is provided with a connecting seat, which has a first connecting hole, and the transmission component is provided with a second connecting hole. Fasteners pass through the first and second connecting holes to achieve a fixed connection between the connecting seat and the transmission component.

9. The filter press linkage sampling device as described in claim 8, characterized in that, The fastener is a flexible pin.

10. A filter press linkage sampling device as described in claim 1, characterized in that, The collection tank and tank body are made of stainless steel or high-strength wear-resistant composite materials.

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