Residue filter in chloroacetone production process

Abstract

The utility model discloses a residue filter in a chloroacetone production process, which belongs to the technical field of solid-liquid separation equipment and comprises a filter pressing pipe, a top cover is arranged at the top of the filter pressing pipe, an annular bulge is arranged at the bottom of an inner cavity of the filter pressing pipe, a support plate is clamped on the annular bulge, filter cloth is arranged at the top of the support plate, and a rotating rod is fixed at the top of the support plate. A sleeve is fixed to the top cover, a circular plate is fixed to the bottom of the sleeve, a baffle is rotatably arranged at the bottom of the circular plate, the baffle is slidably connected with the rotating rod, a telescopic rod is fixedly connected to an inner cavity of the baffle and sleeved with a reset spring, and the telescopic rod and the reset spring are fixedly connected with an annular plate rotatably arranged in an inner cavity of the circular plate; a second locking plate is fixed to the top of the top cover, and a locking screw arranged at the top of the top cover penetrates through the rotating rod, the first locking plate and the second locking plate in a threaded mode. According to the utility model, the filter cake can be compacted in the process of replacing the filter cloth, residual liquid in the filter cake is removed, and the filter cake is more compact.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation equipment technical field especially relates to a residue filter in chloroacetone production process. BACKGROUND

[0002] Chloroacetone (also known as monochloropropane or chlorinated acetone) is an important organic chemical, is widely used in medicine, pesticide, dye and chemical industry, in the production process of chloroacetone, often produce some high boiling point viscous residue, how to efficiently separate these solid materials from liquid, becomes a key technical problem in production. Traditional solid -liquid separation method such as gravity sedimentation, centrifugal separation etc. is not applicable to the separation of high viscosity solid material and liquid, therefore it is difficult to meet the needs of industrial production.

[0003] In order to solve this problem, filter press equipment is developed and applied to the solid -liquid separation link of chloroacetone production, and the filter press equipment forces liquid to flow out through filter cloth by applying gas pressure or hydraulic pressure, so as to realize the interception of solid material and the separation of liquid.

[0004] At present, in the filter cloth replacement process, liquid often remains in the filter cake, and the filter cake cannot be fully compacted during subsequent treatment, which leads to difficult waste treatment and increased treatment cost. In addition, the fixing point between the top cover and the filter press pipe in the existing equipment is single, which cannot effectively ensure the tightness of the connection between the two, thereby causing gas leakage, which not only affects the filtering effect, but also may affect the operation stability of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at: compacting filter cake in the process of replacing filter cloth, removing residual liquid in filter cake and making filter cake more compact.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a residue filter in chloroacetone production process, including filter press pipe, the top of filter press pipe is equipped with top cover, the bottom of filter press pipe inner chamber is equipped with annular protrusion, annular protrusion is connected with the support plate with liquid discharge hole, the top of support plate is equipped with filter cloth, the top of support plate is fixed with rotating rod penetrating top cover, top cover is fixed with sleeve extending to filter press pipe inner chamber, the bottom of sleeve is fixed with circular plate with sector hole, the bottom of circular plate rotates with baffle capable of blocking sector hole, baffle and rotating rod are connected slidingly, the inner chamber of baffle is fixedly connected with telescopic rod, telescopic rod is sleeved with reset spring, telescopic rod and reset spring are fixedly connected with annular plate rotating in the inner chamber of circular plate,

[0007] The outer ring of filter press pipe is fixed with first locking plate, the top of top cover is fixed with second locking plate, and the locking screw arranged on the top of top cover is threaded through rotating rod, first locking plate and second locking plate.

[0008] As a further description of the above technical solution: the filter tube outer ring is inlaid with a sight glass, and the filter tube bottom liquid outlet pipe is fixedly connected with a liquid discharge valve.

[0009] As a further description of the above technical solution: the filter tube outer ring is fixed with a gas inlet pipeline, and the gas inlet pipeline is provided with a pressure gauge, a flow meter and a pressure reducing valve.

[0010] As a further description of the above technical solution: the annular protrusion top is provided with at least two L-shaped protrusions, and the support plate bottom is provided with grooves matched with the L-shaped protrusions.

[0011] As a further description of the above technical solution: the sleeve is sleeved on the outer ring of the rotating rod, the baffle inner cavity is provided with a rectangular protrusion, and the rectangular protrusion is in sliding connection with a strip-shaped slide provided on the outer ring of the rotating rod.

[0012] As a further description of the above technical solution: the top of the top cover is provided with a sealing ring sleeved on the outer ring of the rotating rod, and the top of the top cover is rotatably connected with a sealing cover.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0014] 1. Through 90-degree rotation of the rotating rod, the clamping of the support plate and the annular protrusion in the filter tube inner cavity can be easily released, realizing quick replacement of the filter cloth. This design simplifies the operation of filter cloth replacement, improves production efficiency, reduces downtime, and improves the overall utilization rate of the equipment.

[0015] 2. The rotating rod drives the baffle to rotate, so that the circular plate and the baffle form a flat surface. During the process of taking out the filter cloth, the filter cake is automatically compacted, effectively removing residual liquid in the filter cake, and making the filter cake more compact, which facilitates subsequent waste treatment and storage, and reduces waste treatment cost.

[0016] 3. The support plate and the annular protrusion in the filter tube inner cavity are fixed by clamping, and the locking screw not only effectively prevents the rotation of the rotating rod, but also firmly fixes the top cover on the filter tube. At the same time, the rotating rod provides an additional locking point, further enhancing the sealing performance between the top cover and the filter tube, ensuring no gas leakage during filtration, and improving the sealing performance and operation stability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A front view of the present application is shown;

[0018] Figure 2 A sectional view of the present application is shown;

[0019] Figure 3 A sectional view of the present application is shown; Figure 2Enlarged view of the middle A;

[0020] Figure 4 The utility model discloses Figure 2 Enlarged view of the middle B;

[0021] Figure 5 The utility model discloses a sectional view of filter tube;

[0022] Figure 6 The utility model discloses a structure diagram of support plate;

[0023] Figure 7 The utility model discloses a perspective view of round plate and baffle;

[0024] Figure 8 The utility model discloses a perspective view of round plate, baffle and support plate;

[0025] Figure 9 The utility model discloses a perspective view.

[0026] Legend:

[0027] 10, filter tube; 101, first locking plate; 11, top cover; 111, second locking plate; 12, annular protrusion; 121, L-shaped lug; 13, locking screw; 14, sight glass; 15, liquid discharge valve; 16, gas inlet pipe; 17, pressure gauge; 18, flow meter; 19, pressure reducing valve;

[0028] 20, support plate; 21, filter cloth; 22, rotating rod; 23, sealing ring; 24, sealing cover;

[0029] 30, sleeve; 31, round plate; 32, baffle; 321, rectangular lug; 33, telescopic rod; 34, return spring; 35, annular plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Please refer to Figures 1-9The utility model provides a technical scheme: a residue filter in chloroacetone production process, including filter tube 10, filter tube 10 is the main part of whole filter equipment, filter tube 10 is column structure, is used for accommodating the material that needs to be filtered, through the gas compression effect, liquid is separated from solid material, the design of column makes the filtering space be more uniform, can effectively transmit air pressure, the top of filter tube 10 is equipped with top cover 11, the inner chamber bottom of filter tube 10 is equipped with annular protrusion 12, annular protrusion 12 is clamped with the support plate 20 of liquid discharge hole.

[0032] The top of support plate 20 is equipped with filter cloth 21, and the filter cloth 21 is used for filtering solid material. It retains solid residues on the surface of the filter cloth 21 through physical screening, and the liquid is discharged through the filter cloth 21. The top of the support plate 20 is fixed with a rotating rod 22 that penetrates the top cover 11. When it is necessary to replace the filter cloth 21, the rotating rod 22 is rotated by 90 degrees to release the clamping of the support plate 20 and the annular protrusion 12. The top cover 11 is fixed with a sleeve 30 that extends into the inner cavity of the filter tube 10.

[0033] The bottom of the sleeve 30 is fixed with a circular plate 31 with a sector-shaped hole. The bottom of the circular plate 31 rotates with a baffle 32 that can block the sector-shaped hole. The baffle 32 is slidably connected with the rotating rod 22. The inner cavity of the baffle 32 is fixedly connected with an extension rod 33. The extension rod 33 is sleeved with a return spring 34. The extension rod 33 and the return spring 34 are fixedly connected with an annular plate 35 that rotates in the inner cavity of the circular plate 31.

[0034] The outer ring of the filter tube 10 is fixed with a first locking plate 101. The top of the top cover 11 is fixed with a second locking plate 111. A locking screw 13 provided on the top of the top cover 11 threadedly penetrates the rotating rod 22 and the first and second locking plates 101 and 111.

[0035] The support plate 20 and the annular protrusion 12 in the inner cavity of the filter tube 10 are fixed by clamping. The locking screw 13 not only effectively prevents the rotation of the rotating rod 22, but also firmly fixes the top cover 11 on the filter tube 10. At the same time, the rotating rod 22 provides an additional locking point, thereby further enhancing the sealing between the top cover 11 and the filter tube 10, ensuring no gas leakage during the filtration process, and improving the sealing performance and operational stability of the equipment.

[0036] After the filtration is completed, the locking screw 13 is removed. The rotating rod 22 is rotated by 90 degrees through the sliding connection between the rotating rod 22 and the baffle 32. The clamping relationship between the support plate 20 and the annular protrusion 12 in the inner cavity of the filter tube 10 is released, and the baffle 32 is also rotated by 90 degrees. The baffle 32 blocks the sector-shaped hole on the surface of the circular plate 31. Then the filter cake on the top of the support plate 20 is lifted by the rotating rod 22. The filter cake is compacted by the baffle 32 and the circular plate 31, further removing the liquid in the filter cake, and making the filter cake more compact, which is convenient for subsequent waste treatment or storage.

[0037] Furthermore, a sight glass 14 is inlaid on the outer ring of the filter press tube 10, and a drain valve 15 is fixedly connected to the liquid outlet pipe at the bottom of the filter press tube 10.

[0038] The sight glass 14 allows for better observation of the filter cake's condition, facilitating the recording of filtration time, drying time, and pressing time, thus providing better data for the production unit. The drain valve 15 controls the discharge of liquid from the filter press tube 10.

[0039] Furthermore, the outer ring of the filter press tube 10 is fixed with an air inlet pipe 16, and the air inlet pipe 16 is equipped with a pressure gauge 17, a flow meter 18, and a pressure reducing valve 19.

[0040] Gas (compressed air or nitrogen, depending on the properties of the material) can be introduced into the filter press tube 10 through the gas inlet pipe 16. The gas transmits pressure to the filter cloth 21. At this time, the liquid is discharged through the filter cloth 21 and the liquid outlet pipe at the bottom of the filter press tube 10 under the action of gas pressure, while the solid material is intercepted by the filter cloth 21, thus completing the solid-liquid separation.

[0041] The pressure reducing valve 19 can adjust the pressure of the gas entering the filter press tube 10 to ensure that the gas pressure is stable within a suitable range. The flow meter 18 can monitor the gas flow rate in real time to ensure that the gas volume and pressure are kept within a predetermined range during the filtration process. The pressure gauge 17 can help the operator understand the pressure of the gas entering the filter press tube 10 to ensure that the gas pressure entering the filter press tube 10 is stable and to avoid damage to the equipment due to excessive pressure or affect the filtration effect due to excessively low pressure.

[0042] Furthermore, the top of the annular protrusion 12 is provided with at least two L-shaped protrusions 121, for reference. Figure 6 The bottom of the support plate 20 is provided with a groove that works in conjunction with the L-shaped protrusion 121.

[0043] The support plate 20 can be fixed on the annular protrusion 12 by means of the groove at the bottom of the support plate 20 and the L-shaped protrusion 121. Specifically, the support plate 20 is placed on the annular protrusion 12, the L-shaped protrusion 121 is inserted into the groove, and then the support plate 20 is rotated 90 degrees by the rotating rod 22 so that the L-shaped protrusion 121 is engaged with the groove. If the support plate 20 needs to be removed, it can be removed by rotating it 90 degrees in the opposite direction.

[0044] Furthermore, the sleeve 30 is fitted onto the outer ring of the rotating rod 22, and the inner cavity of the baffle 32 is provided with a rectangular protrusion 321, for reference. Figure 8 The outer ring of the rotating rod 22 is provided with a strip-shaped slide, and the rectangular protrusion 321 is slidably connected to the strip-shaped slide.

[0045] Through the rectangular bump 321 and the strip-shaped slide, the baffle 32 can be rotated 90 degrees when the rotating rod 22 rotates the support plate 20 by 90 degrees, and then the baffle 32 seals the fan-shaped hole on the surface of the circular plate 31 under the action of the reset spring 34, as shown in Figure 8 The circular plate 31 and the baffle 32 constitute a flat surface; when the filtration is completed and the support plate 20 needs to be taken out, the top cover 11 is pressed by hand, the support plate 20 is lifted through the rotating rod 22, the top filter cake of the support plate 20 is in contact with the bottom of the circular plate 31 and the baffle 32, the filter cake is compacted by the baffle 31 and the circular plate 32, the liquid in the filter cake is further removed, the filter cake is more compact, and subsequent waste treatment or storage is facilitated, then the hand is away from the top cover 11, and the top cover 11 is taken out at the same time as the support plate 20.

[0046] Further, the top of the top cover 11 is provided with a sealing ring 23 sleeved on the outer ring of the rotating rod 22, and the top of the top cover 11 is rotationally connected with a sealing cover 24.

[0047] The sealing ring 23 and the sealing cover 24 can seal the connection between the top cover 11 and the rotating rod 22, which can effectively prevent gas leakage, reduce gas waste, ensure the stability and efficiency of the gas pressure in the filtration process, improve the sealing performance of the system, and prolong the service life of the equipment.

[0048] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A filter for residues in the production of chloroacetone, comprising a filter press tube (10), characterized in that: The top of the filter tube (10) is provided with a top cover (11), the bottom of the inner cavity of the filter tube (10) is provided with an annular protrusion (12), the annular protrusion (12) is clamped with a support plate (20) with a liquid discharge hole, the top of the support plate (20) is provided with a filter cloth (21), the top of the support plate (20) is fixed with a rotating rod (22) penetrating the top cover (11), the top cover (11) is fixed with a sleeve (30) extending into the inner cavity of the filter tube (10), the bottom of the sleeve (30) is fixed with a circular plate (31) with a fan-shaped hole, the bottom of the circular plate (31) is rotatably provided with a baffle (32) capable of blocking the fan-shaped hole, the baffle (32) is slidably connected with the rotating rod (22), the inner cavity of the baffle (32) is fixedly connected with an extension rod (33), the extension rod (33) is sleeved with a return spring (34), the extension rod (33) and the return spring (34) are fixedly connected with an annular plate (35) rotating in the inner cavity of the circular plate (31). The outer circle of the filter tube (10) is fixed with a first locking plate (101), the top of the top cover (11) is fixed with a second locking plate (111), and a locking screw (13) provided on the top of the top cover (11) is threaded through the rotating rod (22) and the first locking plate (101) and the second locking plate (111).

2. A filter for residues in the production of chloroacetone according to claim 1, characterized in that: The filter tube (10) is provided with a sight glass (14), and the liquid outlet pipe at the bottom of the filter tube (10) is fixedly connected with a liquid discharge valve (15).

3. A filter for residues in the production of chloroacetone according to claim 1, characterized in that: The outer circle of the filter tube (10) is fixed with a gas inlet pipe (16), and the gas inlet pipe (16) is provided with a pressure gauge (17), a flow meter (18) and a pressure reducing valve (19).

4. A filter for residues in the production of chloroacetone according to claim 1, characterized in that: The top of the annular protrusion (12) is provided with at least two L-shaped lugs (121), and the bottom of the support plate (20) is provided with a groove matched with the L-shaped lugs (121).

5. A filter for residues in the production of chloroacetone according to claim 1, characterized in that: The sleeve (30) is sleeved on the outer circle of the rotating rod (22), and the inner cavity of the baffle (32) is provided with a rectangular lug (321), which is slidably connected with a strip-shaped slide provided on the outer circle of the rotating rod (22).

6. A filter for residues in the production of chloroacetone according to claim 1, characterized in that: The top of the top cover (11) is provided with a sealing ring (23) sleeved on the outer circle of the rotating rod (22), and the top of the top cover (11) is rotatably connected with a sealing cover (24).

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