A cleaning device for high-purity quartz sand floatation finished product spin-drying filter bag

Abstract

The utility model relates to the technical field of semiconductor production, especially to a kind of cleaning device of high-purity quartz sand floatation finished product with spin-drying filter bag, solve the shortcoming of semiconductor production in prior art, including cleaning cylinder, fixed frame, support part and cleaning module;The top of the cleaning cylinder is provided with the feed inlet that can be opened and closed, the feed inlet diameter is compatible with the outer diameter of fixed frame;The fixed frame is used to unfold and clamps the open end of filter bag body, the fixed frame is driven lifting by lifting mechanism, and the open end of filter bag body is connected and invertedly buckled on the outside of support part;The support part is opened to filter bag body, the cleaning module annularly is arranged at the outer periphery of support part, the fixed frame includes annular plate, the outer periphery of annular plate is vertically and fixedly connected with annular wall, a plurality of sliding grooves are passed through and arranged on the annular plate, the arc-shaped clamping plate is slidably connected in the sliding groove, the utility model is low to filter bag damage rate and flush thoroughly.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor manufacturing technology, specifically a cleaning device for a spin-drying filter bag used in high-purity quartz sand flotation. Background Technology

[0002] In the production of high-purity quartz sand, the filter bags used for flotation product drying need to trap mineral particles. After long-term use, the pores of the filter bags will be blocked by a combination of mineral particles, grease and colloidal impurities. The filter bags are mostly made of polyester, polypropylene or high-performance membrane materials. It is necessary to avoid material corrosion, membrane peeling or secondary pollution during cleaning. However, the existing general cleaning equipment cannot completely remove the reagent residues and mineral particles, and the filter bag damage rate is high and the cleaning effect is not good.

[0003] A double-row, double-spray cleaning device for high-temperature resistant filter bags is disclosed in existing patent publication number CN108188121A. The device includes a housing, a power system, an inner bag cleaning subsystem, a front-position outer bag cleaning subsystem, a side-position outer bag cleaning subsystem, a sewage pump, and a vacuum pump. A water leakage plate is horizontally arranged inside the housing. Two rows of filter bag supports and cleaning partitions are arranged on the water leakage plate. The front and rear rows of filter bag supports are arranged symmetrically about the plane of the cleaning partitions. The power system includes a motor and a toothed conveyor belt. The inner bag cleaning subsystem includes an inner bag water supply pipe, an inner spray pipe, an inner bag cleaning pressure regulator, and an inner bag washing liquid addition device.

[0004] In the above technical solution, the filter bag is supported by putting it on the filter bag support and then cleaning. However, the filter bag support lacks a fixing method, and the filter bag is prone to falling off or shifting under the action of the nozzle cleaning, resulting in poor stability.

[0005] Therefore, it is necessary to design a cleaning device for the spin-drying filter bags of high-purity quartz sand flotation products to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a cleaning device for the spin-drying filter bags used in the flotation of high-purity quartz sand, which has a low damage rate to the filter bags and provides thorough rinsing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for a high-purity quartz sand flotation finished product spin-drying filter bag, comprising a cleaning cylinder, a fixing frame, a support part, and a cleaning module; The top of the cleaning cylinder is provided with an openable and closable feed inlet, the diameter of which is adapted to the outer diameter of the fixed frame; The fixing frame is used to unfold and clamp the open end of the filter bag body. The fixing frame is driven to rise and fall by the lifting mechanism, and the open end of the filter bag body is sleeved and inverted on the outside of the support. The support expands the filter bag body, and the cleaning module is arranged in a ring around the outer periphery of the support.

[0008] According to the above technical solution, the fixing frame includes an annular plate, the outer periphery of which is perpendicularly and fixedly connected to an annular wall. Several sliding grooves are opened through the annular plate, and an arc-shaped clamping plate is slidably fitted in the sliding groove. A guide rod is fixedly connected in the sliding groove, and a spring is sleeved on the outside of the guide rod. The annular wall and the arc-shaped clamping plate clamp the open end of the filter bag body.

[0009] According to the above technical solution, a wedge block is fixedly connected to the outer end of the arc-shaped clamping plate, and a rotating ring is rotatably connected to the outer side of the annular wall. Several adaptation grooves are opened at the bottom of the rotating ring, the wedge block passes through the adaptation groove, and a guide wheel is provided in the adaptation groove. The guide wheel is adapted to the inclined surface of the wedge block.

[0010] According to the above technical solution, the support part includes a contour column, the top of the contour column is set as a spherical structure, the bottom of the contour column is provided with a support seat, the four sides of the support seat are provided with connecting rods, the connecting rods are connected to the inner wall of the cleaning cylinder, and the lifting mechanism includes a plurality of telescopic rods, the bottom of the telescopic rods is provided on the support seat.

[0011] According to the above technical solution, the upper surface of the support base is set as a conical surface.

[0012] According to the above technical solution, a hot air generator is installed inside the support base, the interior of the contour column is hollow, and several ventilation openings are provided at the top, with dustproof nets installed at the ventilation openings.

[0013] According to the above technical solution, the cleaning module includes an annular pipe, a plurality of nozzles are provided at the top of the annular pipe, the annular pipe is connected to the inner wall of the cleaning cylinder through a connecting ring, a water storage tank is integrally extended at the lower end of the cleaning cylinder, and a connecting pipe is provided between the water storage tank and the annular pipe.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: The filter bag body is clamped at the open end by the fixing frame and opened by the support part, thus forming a double fixing and limiting structure for the filter bag body. This prevents the filter bag body from being unable to be fixed and thus avoids it from shifting easily during cleaning. It ensures the stability of the filter bag body during the cleaning process and improves cleaning efficiency. The cleaning modules are arranged in a ring around the outer periphery of the support unit. Together with the expanded filter bag body, they can cover the surface of the filter bag body 360 degrees, which can thoroughly clean impurities such as mineral particles, oils or colloids, and achieve good cleaning effect. The support unit expands the filter bag body and further supports the filter bag body as a whole, thereby reducing damage to the filter bag during the cleaning process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the cleaning device for the spin-drying filter bag of this utility model; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a three-dimensional schematic diagram of the interior of the cleaning cylinder of this utility model; Figure 4 This is a three-dimensional schematic diagram of the bottom of the annular plate of this utility model; In the diagram: 1. Cleaning cylinder; 101. Feed inlet; 2. Fixing frame; 201. Annular plate; 202. Annular wall; 203. Arc-shaped clamp; 204. Guide rod; 205. Wedge block; 206. Telescopic rod; 3. Contouring column; 301. Support base; 302. Connecting rod; 4. Rotating ring; 401. Guide wheel; 5. Annular pipe; 501. Nozzle; 502. Connecting ring; 6. Hot air generator; 7. Water storage tank; 8. Connecting pipe. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 The present invention provides a technical solution: a cleaning device for a spin-drying filter bag for high-purity quartz sand flotation finished product, comprising a cleaning cylinder 1, a fixing frame 2, a support part and a cleaning module; The top of the cleaning cylinder 1 is provided with an openable and closable feed inlet 101, the diameter of which is adapted to the outer diameter of the fixed frame 2. The fixing frame 2 is used to unfold and clamp the open end of the filter bag body. The fixing frame 2 is driven to lift and lower by the lifting mechanism, and the open end of the filter bag body is sleeved and inverted on the outside of the support. The support section expands the filter bag body, and the cleaning module is arranged in a ring around the outer periphery of the support section.

[0018] In this embodiment, the operator first opens the feed inlet 101 at the top of the cleaning cylinder 1, and puts the open end of the filter bag body into the fixing frame 2 to clamp and fix the filter bag body. The fixing frame 2 is driven to descend by the lifting mechanism, so that the filter bag body is upside down and spread out on the outside of the support. Then, the filter bag body is sprayed in a ring shape by the cleaning module. After the cleaning is completed, the lifting mechanism drives the fixing frame 2 to rise and detach from the support. The operator opens the cover and takes out the clean filter bag body, completing one cleaning cycle. Furthermore, by clamping the open end of the filter bag body with the fixing frame 2 and expanding the filter bag body with the support, a double fixing and limiting structure is formed for the filter bag body, which prevents the filter bag body from being unable to be fixed and thus easily shifting during cleaning, ensuring the stability of the filter bag body during the cleaning process and improving cleaning efficiency. Furthermore, by arranging the cleaning modules in a ring around the outer periphery of the support, together with the expanded filter bag body, it can cover the surface of the filter bag body 360 degrees, which can thoroughly clean impurities such as mineral particles, grease or colloids, and achieve good cleaning effect. Furthermore, the support expands the filter bag body, providing further support to the entire filter bag body, thereby reducing damage to the filter bag during the cleaning process; Preferably, the cleaning cylinder 1 is made of corrosion-resistant stainless steel, and the top feed port 101 is equipped with a quick-opening flange cover, which is sealed after closing to prevent the cleaning fluid from leaking and the dust from escaping. The flange cover is existing technology in the field, so it is not shown in the figure.

[0019] The fixing frame 2 includes an annular plate 201. An annular wall 202 is vertically and fixedly connected to the outer periphery of the annular plate 201. Several sliding grooves are opened through the annular plate 201. Arc-shaped clamping plates 203 are slidably fitted in the sliding grooves. A guide rod 204 is fixedly connected in the sliding grooves. A spring is sleeved on the outside of the guide rod 204. The annular wall 202 and the arc-shaped clamping plates 203 clamp the open end of the filter bag body.

[0020] In this embodiment, in the initial state, the worker pulls open the arc-shaped clamp 203, then puts the open end of the filter bag between the annular wall 202 and the arc-shaped clamp 203, and then releases the arc-shaped clamp 203. The spring generates a reverse elastic force, which pushes the arc-shaped clamp 203 to cooperate with the annular wall 202 to clamp the open end of the filter bag. Furthermore, a spring component is provided to provide a continuous elastic clamping force, which allows the arc-shaped clamping plate 203 and the annular wall 202 to clamp the filter bag, improving the stability of filter bag cleaning. The flexible clamping force of the spring can further buffer the impact force brought by high-pressure rinsing, preventing the filter bag from shifting or falling off. Furthermore, the contact surface of the arc-shaped clamp 203 with the filter bag is arc-shaped, and wear-resistant rubber material is preferred. It is used in conjunction with spring for flexible clamping to avoid squeezing or scratching the opening end of the filter bag and to prevent the membrane from falling off or the fibers from breaking.

[0021] A wedge block 205 is fixedly connected to the outer end of the arc-shaped clamping plate 203. A rotating ring 4 is rotatably connected to the outer side of the annular wall 202. Several adaptation grooves are opened at the bottom of the rotating ring 4. The wedge block 205 passes through the adaptation grooves. A guide wheel 401 is provided in the adaptation grooves. The guide wheel 401 is adapted to the inclined surface of the wedge block 205.

[0022] In this embodiment, by manually rotating the rotating ring 4, the guide wheel 401 in the groove moves with the rotating ring 4, rolls along the inclined surface of the wedge 205 and squeezes the wedge 205. The wedge 205 is squeezed and pushes the arc-shaped clamping plate 203 radially inward, thereby separating the arc-shaped clamping plate 203 from the annular wall 202, so that the filter bag opening end can be placed. Then, the rotating ring 4 is released, and the arc-shaped clamping plate 203 is radially reset under the elastic force of the spring, thereby clamping the filter bag opening end. Furthermore, by rotating the ring 4 to drive the guide wheel 401 to squeeze the wedge block 205, the four arc-shaped clamps 203 on all four sides can be displaced simultaneously to control the opening and closing. There is no need to manually pry open the four arc-shaped clamps 203 on all four sides at the same time. The operation is simple and convenient, and the efficiency of loading and unloading filter bags is improved. Preferably, the surface of the guide wheel 401 is covered with a polyurethane wear-resistant layer to further reduce friction and buffer the transmission impact force.

[0023] The support includes a contour column 3, the top of which is a spherical structure, and a support base 301 at the bottom of the contour column 3. Connecting rods 302 are provided on the four sides of the support base 301, and the connecting rods 302 are connected to the inner wall of the cleaning cylinder 1. The lifting mechanism includes several telescopic rods 206, the bottom of which is located on the support base 301.

[0024] In this embodiment, the telescopic rod 206 extends and retracts, driving the fixed frame 2 to rise and fall, thereby facilitating the switching between the filter bag disassembly and cleaning station. When the telescopic rod 206 slowly retracts, it drives the filter bag to descend along the axial direction of the contour column 3. The spherical structure at the top of the contour column 3 guides the filter bag to fit until the filter bag is fully opened. Furthermore, a spherical structure is set at the top of the contour column 3 to avoid scratching the filter bag body, and to ensure even force distribution when it is opened, thus preventing damage. Furthermore, the four connecting rods 302 are fixed to the inner wall of the cleaning cylinder 1 to form a stable cross support structure, which prevents the support from shaking during the cleaning process. Preferably, the telescopic rod 206 is equipped with an electric telescopic rod, the telescopic speed is adjustable, and it has a stroke limit function. The bottom is fixed to the upper surface of the support base 301 by a flange, and the top is bolted to the annular plate 201 of the fixed frame 2 to ensure uniform force during lifting. Preferably, the telescopic pole 206 is fitted with a corrosion-resistant protective sleeve made of polyvinyl chloride, and a sealing sleeve is installed at the bottom interface to prevent cleaning fluid or dust from entering the pole body and extend its service life.

[0025] The upper surface of the support 301 is set as a conical surface.

[0026] In this embodiment, a conical surface is provided so that the cleaning fluid and the detached mineral dust will flow down the inclined surface quickly and will not accumulate on the surface of the support 301, thereby reducing chemical residue corrosion or the generation of impurities.

[0027] The support base 301 is equipped with a hot air generator 6. The interior of the contour column 3 is hollow and has several ventilation openings at the top, with dustproof nets installed at the ventilation openings.

[0028] In this embodiment, after the filter bag is cleaned, the hot air generator 6 is started. The generated hot air enters the hollow cavity of the contour column 3 and blows upward along the cavity wall into the filter bag, carrying away the moisture from the inside to the outside, thereby achieving rapid drying of the filter bag. Furthermore, by incorporating the hot air generator 6 into the support base 301, hot air is directly blown into the filter bag through the ventilation opening of the hollow contour column 3, eliminating the need for a separate drying device afterward, thus improving the overall processing efficiency of the equipment. Moreover, it does not require additional space inside the cleaning cylinder 1, resulting in a simpler overall layout. Furthermore, by blowing hot air into the molded column 3 through the hot air generator 6, the heat is further transferred to the entire molded column 3 while drying through the ventilation opening, so that every part of the filter bag fitted on the molded column 3 can be covered by heat, avoiding local moisture residue. Furthermore, the dustproof net can further prevent mineral dust from entering the interior of the contour column 3, protecting the hot air generator 6 from dust wear or blockage. Preferably, the hot air generator 6 is a small electric heating hot air heater with an adjustable hot air temperature of 60-80℃, and is equipped with a temperature sensor for real-time monitoring.

[0029] The cleaning module includes an annular pipe 5, with several nozzles 501 installed at the top of the annular pipe 5. The annular pipe 5 is connected to the inner wall of the cleaning cylinder 1 via a connecting ring 502. A water storage tank 7 is integrally extended from the lower end of the cleaning cylinder 1, and a connecting pipe 8 is installed between the water storage tank 7 and the annular pipe 5.

[0030] In this embodiment, a suitable cleaning solution is first injected into the water storage tank 7, and the circulation pump is started to transport the cleaning solution in the water storage tank 7 to the annular pipe 5 through the connecting pipe 8. The solution is then evenly sprayed onto the outer wall of the filter bag through the top nozzle 501 for cleaning. The waste liquid after cleaning is returned to the water storage tank 7, and particulate impurities are filtered out by the filter screen. The purified cleaning solution is then recycled again to continue cleaning until the standard is met. When the cleaning is completed, the waste liquid in the water storage tank 7 is discharged through the drain outlet. Furthermore, a water storage tank 7 is provided to collect the waste liquid after cleaning. After filtration and purification, the waste liquid is transported back to the ring pipeline 5 to realize the recycling of cleaning liquid and reduce water consumption and wastewater discharge. Preferably, an ultrasonic vibrating plate is provided, which is evenly distributed along the inner wall of the cleaning cylinder 1 and embedded in the mounting groove of the inner wall of the cleaning cylinder 1. The ultrasonic vibrating plate generates high-frequency vibration, which loosens the impurities in the pores of the filter bag. Combined with the nozzle 501, it can thoroughly remove mineral particles, grease and colloids from the surface and pores of the filter bag. Preferably, a resin adsorption device is installed in the water storage tank 7 to adsorb ionic impurities in the cleaning solution, such as calcium or magnesium ions, to ensure the cleanliness of the circulating cleaning solution.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention 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 invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cleaning device for spin-drying filter bags used in high-purity quartz sand flotation, characterized in that, Includes a cleaning cylinder (1), a fixing frame (2), a support unit, and a cleaning module; The top of the cleaning cylinder (1) is provided with an openable and closable feed inlet (101), the diameter of which is adapted to the outer diameter of the fixing frame (2); The fixing frame (2) is used to unfold and clamp the open end of the filter bag body. The fixing frame (2) is driven to lift and lower by the lifting mechanism, and the open end of the filter bag body is sleeved and upside down on the outside of the support. The support portion expands the filter bag body, and the cleaning module is arranged in a ring around the outer periphery of the support portion.

2. The cleaning device for the centrifugal filter bag of high-purity quartz sand flotation product according to claim 1, characterized in that, The fixing frame (2) includes an annular plate (201), the outer periphery of which is vertically connected to an annular wall (202). Several sliding grooves are opened through the annular plate (201), and an arc-shaped clamping plate (203) is slidably fitted in the sliding groove. A guide rod (204) is fixedly connected in the sliding groove. A spring is sleeved on the outer side of the guide rod (204). The annular wall (202) and the arc-shaped clamping plate (203) clamp the opening end of the filter bag body.

3. The cleaning device for the centrifugal filter bag of high-purity quartz sand flotation product according to claim 2, characterized in that, The outer end of the arc-shaped clamp (203) is fixedly connected to a wedge (205), and the outer side of the annular wall (202) is rotatably connected to a rotating ring (4). The bottom of the rotating ring (4) is provided with several adaptation grooves. The wedge (205) passes through the adaptation grooves. A guide wheel (401) is provided in the adaptation grooves. The guide wheel (401) is adapted to the inclined surface of the wedge (205).

4. The cleaning device for the centrifugal filter bag of high-purity quartz sand flotation product according to claim 1, characterized in that, The support includes a contour column (3), the top of which is a spherical structure, and a support base (301) at the bottom of which is provided. Connecting rods (302) are provided on the four sides of the support base (301). The connecting rods (302) are connected to the inner wall of the cleaning cylinder (1). The lifting mechanism includes several telescopic rods (206), the bottom of which is provided on the support base (301).

5. A cleaning device for a high-purity quartz sand flotation finished product centrifugal filter bag according to claim 4, characterized in that, The upper surface of the support base (301) is set as a conical surface.

6. The cleaning device for the centrifugal filter bag of high-purity quartz sand flotation product according to claim 4, characterized in that, The support base (301) is equipped with a hot air generator (6), the contour column (3) is hollow inside and has several ventilation openings at the top, and a dustproof net is provided at the ventilation openings.

7. The cleaning device for the centrifugal filter bag of high-purity quartz sand flotation product according to claim 1, characterized in that, The cleaning module includes an annular pipe (5), and a number of nozzles (501) are provided on the top of the annular pipe (5). The annular pipe (5) is connected to the inner wall of the cleaning cylinder (1) through a connecting ring (502). A water storage tank (7) is integrally extended from the lower end of the cleaning cylinder (1). A connecting pipe (8) is provided between the water storage tank (7) and the annular pipe (5).

Images