Overflow-free sliding table equipment of rubber belt filter

Abstract

Two sliding tables are arranged at the bottom end of a rubber belt, a rhombic vacuum box is arranged between the sliding tables, a top channel of the rhombic vacuum box is covered and sealed through the rubber belt, and a bottom liquid pipeline is connected with a vacuum pipeline to form a negative pressure state. The rubber belt sucks liquid and gas through the suction filtration effect and guides the liquid and the gas into gas-liquid separation equipment, the sliding table is concave, a water return flow channel and a water supply flow channel are arranged in a groove and connected with a water return pipe and a water supply pipe respectively, a wear-resistant belt is arranged in the groove and tightly attached to the sliding table top and slides, and a gap between the sliding table and the wear-resistant belt is lubricated through water injection of the water supply pipe. Meanwhile, air leakage is prevented, it is ensured that the negative pressure in the vacuum box is stable, the lubricating water avoids cross contamination of lubricating liquid and filtering liquid in the traditional technology, the liquid rising phenomenon is prevented, and the concentration of filtering mother liquid is stabilized.

Description

Technical Field

[0001] This utility model relates to solid-liquid separation systems in the fields of chemical industry, sewage treatment, and mineral processing, specifically a lubrication and sealing water slide plate device for the wear-resistant belt of a rubber belt filter. Background Technology

[0002] Currently, rubber belt filters are widely used in my country's chemical industries, such as soda ash and fertilizer, to separate the solid and liquid components of soda ash and baking soda slurries during production, yielding products such as soda ash or baking soda, significantly improving productivity. The sliding platform between the moving rubber belt and the fixed vacuum box uses soft water or purified tap water for lubrication, sealing, and cooling. The main drawback is that 10%-50% of this lubricating and sealing water enters the vacuum filtrate, diluting the system's mother liquor composition and causing a "liquid swelling" phenomenon. This excess water then enters the wastewater treatment system, increasing production costs. Therefore, it is necessary to improve the sliding platform of the rubber belt vacuum filter to ensure proper lubrication, sealing, and cooling while preventing "liquid swelling," maintaining the water system's balance, and avoiding increased wastewater treatment volume and costs.

[0003] In view of this, the inventor, through continuous optimization, improvement and testing, invented a rubber belt filter machine with a water-free slide plate, which has the characteristics of water-free lubrication and maintaining water balance, effectively reducing operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a device that reduces the amount of lubricating water entering the mother liquor of the filtrate when using the slide of a rubber belt vacuum filter, thereby diluting the mother liquor and improving productivity, reducing wastewater discharge, and lowering operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rubber belt filter with a waterless sliding table, comprising a rhomboid vacuum box, a sliding table, a rubber belt, a wear-resistant belt, a filter cloth, a first return water channel, a supply water channel, and a second return water channel. The top of the rubber belt is covered with the filter cloth, and sliding tables are symmetrically arranged on the left and right sides of the bottom of the rubber belt. A rhomboid vacuum box is connected between the sliding tables. The top of the rhomboid vacuum box has a channel, the top of which is covered and sealed by the rubber belt. The bottom is equidistantly connected with outlet channels, which are connected to the vacuum channels, creating a negative pressure state within the channels. The sliding table is concave, and three groove channels are formed within the groove of the sliding table. The channel is staggered and consists of a first return water channel, a second return water channel, and a supply water channel. A supply water channel is located between the first and second return water channels. Multiple sets of supply and return water pipe interfaces are equidistantly arranged on the channel. The bottom ends of the first, second, and supply water channels are set at different heights. The first and second return water channels are connected to the vacuum negative pressure channel through flexible hoses. The supply water channel is connected to the water source through a flexible hose. Semi-circular guide wheels are connected to the left and right sides of the groove of the slide table. A wear-resistant belt is provided between the semi-circular guide wheels. The top of the wear-resistant belt is connected to a rubber belt, and the bottom of the wear-resistant belt abuts against the groove of the slide table and slides against the slide table.

[0006] Preferably, the sliding table groove channel is square or circular, and the interval between the interfaces of each group of water supply pipes and return pipes is 1m.

[0007] Preferably, the concave groove of the sliding table is made of ultra-high molecular weight polyethylene material.

[0008] Preferably, the wear-resistant belt is a ring-shaped belt made of PVC or PU material.

[0009] Preferably, the rhomboid vacuum box is a steel rhomboid-shaped channel.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] Two sliding platforms are installed at the bottom of a rubber belt, with a diamond-shaped vacuum box between them. The top channel of the diamond-shaped vacuum box is sealed by the rubber belt, and a liquid pipe is opened at the bottom and connected to a vacuum pipe, creating a negative pressure state within the channel. Under this negative pressure, the rubber belt draws liquid and gas into the vacuum box through suction filtration, and then introduces them into a gas-liquid separation device. The sliding platforms are concave in design, with return water channels and supply water channels arranged within the grooves, which are respectively connected to the negative pressure return water pipe and the supply water pipe. A wear-resistant belt is installed within the grooves, and the wear-resistant belt interacts with the concave design of the sliding platforms. The surfaces of the slides are in close contact and slide together. Water is injected into the gap between the slide and the wear-resistant belt through the water supply pipe, which serves as a lubricant, reduces frictional heat, and cools the slide and wear-resistant belt. The water supply also acts as a seal, effectively preventing air leakage from the gap between the slide and the wear-resistant belt, ensuring that the negative pressure inside the vacuum box remains stable. The lubricating water is injected through the water supply pipe, avoiding the problem of cross-contamination between lubricant and filtrate in traditional technologies, effectively preventing the occurrence of "liquid swelling" and ensuring the stability of the concentration of the mother liquor. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the slide structure of this utility model.

[0014] In the diagram: 1. Diamond-shaped vacuum box; 2. Slide table; 3. Rubber belt; 4. Wear-resistant belt; 5. Filter cloth; 6. First return water channel; 7. Water supply channel; 8. Second return water channel. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] 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.

[0019] Example 1: Please refer to Figure 1-2This utility model provides an embodiment of a rubber belt filter with a waterless sliding table device, comprising a rhomboid vacuum box 1, a sliding table 2, a rubber belt 3, a wear-resistant belt 4, a filter cloth 5, a first return water channel 6, a water supply channel 7, and a second return water channel 8. The filter cloth 5 is placed on the top of the rubber belt 3, and the sliding tables 2 are symmetrically arranged on the left and right sides of the bottom end of the rubber belt 3, with the top of the sliding tables 2 tightly fitted to the bottom end of the rubber belt 3. The grooves of the sliding tables 2 are square or circular. The rhomboid vacuum box 1 is connected between the sliding tables 2. The top of the rhomboid vacuum box 1 has a channel, the top of which is covered and sealed by the rubber belt 3. The bottom end is equidistantly connected with liquid outlet channels. The equidistant arrangement of the liquid outlet channels ensures consistent suction in the bottom area, thus optimizing the efficiency of the vacuum system and improving the liquid flow rate. The speed and consistency of liquid discharge are ensured to avoid excessively strong or weak local vacuum suction, guaranteeing efficient liquid discharge. The outlet channel is connected to the vacuum channel, creating a negative pressure state within the channel. The rhomboid vacuum box 1 is a steel rhomboid-shaped channel. The main function of the rhomboid vacuum box 1 is to create a negative pressure environment. After being filtered through the filter cloth 5, the liquid is contained on the rubber belt 3, while impurities are filtered onto the filter cloth 5. The top of the rhomboid vacuum box 1 is covered and sealed by the rubber belt 3. Through the cooperation of the connected outlet channel and the vacuum channel, a negative pressure state is generated to promote the suction and filtration of the rubber belt 3. The rubber material has a certain degree of elasticity and air permeability, and the surface of the rubber belt 3 has tiny pores. The liquid enters the interior of the rhomboid vacuum box 1 through these tiny pores and is then introduced into the gas-liquid separation equipment through the outlet channel. Its steel material ensures structural robustness and long-term durability. The slide 2 is concave, with the concave groove made of ultra-high molecular weight polyethylene. This groove can be machined using turning, milling, or planing tools. Three staggered flow channels are formed within the groove of the slide 2: a first return water channel 6, a second return water channel 8, and a supply water channel 7. The supply water channel 7 is located between the first and second return water channels 6 and 8. The interaction between the return and supply water channels ensures liquid recycling, thereby improving efficiency. The reasonable staggering and coordination between the channels makes the liquid flow more stable and uniform. One-way valves are installed on the hoses connected to the first and second return water channels 6 and 8, respectively. Multiple sets of water supply and return pipe interfaces are evenly spaced, with each set spaced 1 meter apart. This even spacing ensures uniform water flow throughout the entire channel, preventing issues like excessively high or low flow rates in certain areas. This uniform distribution helps improve the overall system efficiency and ensures that the water demand of each area is met. The bottom ends of the first return water channel 6, the second return water channel 8, and the water supply channel 7 are positioned at different heights to separate the hoses during connection, preventing them from crossing. The first return water channel 6 and the second return water channel 8 are connected to the vacuum negative pressure channel via hoses. The return water channel is connected to the vacuum negative pressure pipeline via a hose, allowing the filtered mother liquor absorbed by the vacuum negative pressure to be sent into the vacuum drain tank. The water supply channel 7 is connected to the water source via a hose.The water supply channel 7 is connected to the water pump supply pipe via a hose, allowing soft water or tap water to be delivered into the groove channel of the slide table 2. The water diffuses into the gap between the bottom of the groove and the wear-resistant belt 4, providing lubrication, sealing, and cooling. It also acts as a seal to prevent air leakage between the slide table 2 and the wear-resistant belt 4, thus preventing a reduction in the negative pressure of the vacuum box. Semi-circular guide wheels are connected to the left and right sides of the groove in the slide table 2, and these semi-circular guide wheels are evenly distributed within the groove. The semi-circular guide wheels 4 are mainly used to guide the wear-resistant belt 4. The guide belt is positioned to ensure it stays on the correct path, preventing it from deviating and rubbing against the slide 2. A semi-circular guide wheel is connected to the slide 2 via bearings. A wear-resistant belt 4, made of PVC or PU material, is positioned between the semi-circular guide wheels. The top end of the wear-resistant belt 4 is connected to the rubber belt 3, and the bottom end of the wear-resistant belt 4 abuts against the groove of the slide 2 and slides within the slide 2. The slide 2 is a fixed component, and the wear-resistant belt 4 is a moving component. The two slides 2 and the wear-resistant belt 4 form a complete pair.

[0020] During use, after filtration, the liquid is collected on the rubber belt 3 and impurities are collected on the filter cloth 5. At the same time, the liquid outlet channels at equal intervals at the bottom of the rhomboid vacuum box 1 are connected to the vacuum channel. The top of the rhomboid vacuum box 1 is covered and sealed by the rubber belt 3, forming a negative pressure device in the channel. The filtered liquid passes through the tiny pores on the surface of the rubber belt 3 and enters the interior of the rhomboid vacuum box 1 through these tiny pores. It is then introduced into the gas-liquid separation device through the liquid outlet channels. At the same time, the water supply channel 7 flows water into the groove channel on the slide table 2. The water diffuses into the gap between the bottom surface of the groove channel and the wear-resistant belt 4, which plays a role in lubrication, sealing, and cooling. It also plays a sealing role, effectively preventing air leakage between the slide table 2 and the wear-resistant belt 4, ensuring that the negative pressure in the vacuum box remains stable, avoiding the problem of cross-contamination between lubricant and filtrate in traditional technology, effectively preventing the occurrence of "liquid swelling" phenomenon, and ensuring the stability of the concentration of the mother liquor.

[0021] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rubber belt filter spillway slide table apparatus, characterized by: The utility model relates to a kind of vacuum filter, including diamond vacuum box (1), sliding table (2), rubber belt (3), wear-resistant belt (4), filter cloth (5), first backwater channel (6), water supply channel (7), second backwater channel (8), the top of the rubber belt (3) is set with filter cloth (5), the bottom of rubber belt (3) is symmetrically provided with sliding table (2) on left and right sides, diamond vacuum box (1) is connected between sliding table (2), the top of diamond vacuum box (1) is equipped with passageway, passageway top is covered and sealed by rubber belt (3), and bottom equidistantly connected with liquid outlet channel, liquid outlet channel is connected with vacuum channel, passageway is formed into negative pressure state, sliding table (2) is concave, three groove channels are set in the recess of sliding table (2), three groove channels are distributed in staggered, and are formed by first backwater channel (6), second backwater channel (8) and water supply channel (7), water supply channel (7) is arranged between first backwater channel (6) and second backwater channel (8), and a plurality of water supply pipes and backwater pipe interfaces are equidistantly arranged on groove channel, the bottom of first backwater channel (6), second backwater channel (8) and water supply channel (7) is arranged at different heights, first backwater channel (6) and second backwater channel (8) are connected with vacuum negative pressure channel by hose respectively, water supply channel (7) is connected with water source by hose, semicircular guide wheel is connected in the recess of sliding table (2) on left and right sides, wear-resistant belt (4) is arranged between semicircular guide wheel, the top of wear-resistant belt (4) is connected with rubber belt (3), the bottom of wear-resistant belt (4) is abutted with the recess of sliding table (2), and is slidably connected in sliding table (2).

2. A water spill-free skid system for a rubber belt filter as claimed in claim 1, characterized in that: The sliding table (2) groove channel is square or circular, and the interval distance between each water supply pipe and backwater pipe interface is 1 m.

3. A spillway-free skid for a rubber belt filter as defined in claim 1, characterized in that: The recess of sliding table (2) is made of ultrahigh molecular polyethylene material.

4. A spillway-free skid for a rubber belt filter as defined in claim 1, wherein: The wear-resistant belt (4) is a ring-shaped belt made of PVC or PU material.

5. A spillway-free skid for a rubber belt filter as defined in claim 1, wherein: The diamond vacuum box (1) is a steel passageway in diamond shape.

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