Catalyst filter and fluidized bed system

Abstract

The utility model provides a catalyst filter and a fluidized bed system, relates to the technical field of fluidized bed equipment, and solves the problems that a catalyst filter in the existing fluidized bed production process is poor in recycling effect and a filter material is inconvenient to replace. The filter comprises a tank body, a second filter unit is detachably installed on the inner wall of the lower portion of the tank body, a first filter unit is detachably installed above the second filter unit, the first filter unit is filter cloth, the second filter unit comprises a filter screen, the peripheral wall of the filter screen is fixedly connected with a filter screen frame, and the filter screen frame is fixedly connected with the filter screen. The edge of the filter cloth is pressed on the upper surface of the filter screen frame through a plurality of fixed pressing rings. The device has the beneficial effects that the filtering effect is improved through multiple filtering, the treatment efficiency is improved, and the filter cloth and the stainless steel wire filter screen are detachably mounted, so that the disassembly and assembly are convenient, and the subsequent maintenance, cleaning and replacement can be facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed equipment technology, specifically to catalyst filters and fluidized bed systems. Background Technology

[0002] Currently, the recycling of catalyst filters has always been a challenge in the fluidized bed production process of hydrogen peroxide. This is because the catalyst particle size in the fluidized bed production process is only 3μm, while the filter mesh of the catalyst filter in use has a filter precision of 20μm, which cannot accurately filter the palladium catalyst. At the same time, the filter media is inconvenient to replace. Utility Model Content

[0003] The purpose of this invention is to solve the problems of poor catalyst filter recycling and inconvenient filter material replacement in existing fluidized bed production processes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A catalyst filter, characterized in that: it includes a tank, a second filter unit is detachably installed on the lower inner wall of the tank, a first filter unit is detachably installed above the second filter unit, the first filter unit is a filter cloth, the second filter unit includes a filter screen, a filter screen frame is fixedly connected to the outer peripheral wall of the filter screen, and the edge of the filter cloth is pressed onto the upper surface of the filter screen frame by a plurality of fixing rings.

[0006] Further improvements include: an inlet on the upper side wall of the tank, an outlet at the bottom of the tank, a replenishment port on the side wall of the tank at the same level as the inlet, a vent at the center of the top of the tank, an overflow port on the side wall of the tank below the inlet, a purge port, a spare port, and two pressure gauge ports on the top of the tank, a set of level gauge ports on the side wall of the tank above the first filter unit, a set of level gauge ports on the side wall of the tank above the inlet, a set of thermometer ports on the side wall of the tank above the level gauge ports below, three inspection ports at different levels on the side wall of the tank, and a manhole on the front side wall of the tank.

[0007] A further improvement is that an annular support is provided on the lower inner wall of the tank, and several locking holes are provided on both the filter frame and the annular support. The filter frame is installed on the annular support by bolts engaging the locking holes.

[0008] A further improvement is that the fixing ring has at least a first filter cloth fixing hole, and the filter screen frame has several second filter cloth fixing holes. The fixing ring uses bolts to press the filter cloth onto the upper surface of the filter screen frame through the first and second filter cloth fixing holes.

[0009] A further improvement is that the diameter of the fixing ring is less than or equal to the diameter of the filter frame.

[0010] A further improvement is that the filtration accuracy of the filter cloth and filter screen is 3μm.

[0011] A further improvement is that the filter screen is a stainless steel wire filter screen.

[0012] A further improvement is that the stainless steel wire filter is made of 316L stainless steel wire.

[0013] A further improvement is that the filter cloth is a PTFE filter cloth.

[0014] A fluidized bed system, characterized in that it includes the catalyst filter described above.

[0015] Compared with existing technologies, the above technical solution has the following advantages:

[0016] Multiple filtration processes improve filtration effectiveness and processing efficiency. The detachable filter cloth and stainless steel wire mesh facilitate easy disassembly and assembly, as well as subsequent maintenance, cleaning, and replacement. Attached Figure Description

[0017] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 This is a top view of the second filter unit in this utility model;

[0021] Figure 4 This is a top view of the structure of the first filter unit in this utility model;

[0022] Figure 5 This is a top view of the fastening ring in this utility model.

[0023] Explanation of reference numerals in the attached drawings: Tank body 1, First filter unit 2, Fixing ring 21, First filter cloth fixing hole 22, Second filter unit 3, Filter screen frame 31, Filter screen 32, Second filter cloth fixing hole 33, Locking hole 34, Annular support 4, Inlet 5, Outlet 6, Liquid replenishment port 7, Vent port 8, Overflow port 9, Purge port 10, Spare port 11, Thermometer port 12, Pressure gauge port 13, Level gauge port 14, Inspection port 15, Manhole 16. Detailed Implementation

[0024] See Figures 1-5 As shown, the technical solution adopted in this specific embodiment is: a catalyst filter, characterized in that: it includes a tank 1, a second filter unit 3 is detachably installed on the lower inner wall of the tank 1, a first filter unit 2 is detachably installed above the second filter unit 3, the first filter unit 2 is a filter cloth, the second filter unit 3 includes a filter screen 32, a filter screen frame 31 is fixedly connected to the outer peripheral wall of the filter screen 32, and the edge of the filter cloth is pressed onto the upper surface of the filter screen frame 31 by a plurality of fixing rings 21.

[0025] Further improvements include: an inlet 5 on the upper side wall of the tank 1; an outlet 6 at the bottom of the tank 1; a replenishment port 7 on the side wall of the tank 1 at the same level as the inlet 5; a vent 8 at the center of the top of the tank 1; an overflow port 9 on the side wall of the tank 1 below the inlet 5; a purge port 10, a spare port 11, and two pressure gauge ports 13 on the top of the tank 1; a set of level gauge ports 14 on the side wall of the tank 1 above the first filter unit 2; a set of level gauge ports 14 on the side wall of the tank 1 above the inlet 5; a set of thermometer ports 12 on the side wall of the tank 1 above the level gauge ports 14 below; three inspection ports 15 at different levels on the side wall of the tank 1; and a manhole 16 on the front side wall of the tank 1.

[0026] A further improvement is that an annular support 4 is provided on the lower inner wall of the tank body 1, and several locking holes 34 are provided on both the filter frame 31 and the annular support 4. The filter frame 31 is installed on the annular support 4 by bolts in conjunction with the locking holes 34.

[0027] A further improvement is that the fixing ring 21 has at least a first filter cloth fixing hole 22, and the filter frame 31 has a plurality of second filter cloth fixing holes 33. The fixing ring 21 presses the filter cloth onto the upper surface of the filter frame 31 by means of bolts in conjunction with the first filter cloth fixing holes 22 and the second filter cloth fixing holes 33.

[0028] A further improvement is that the diameter of the fixed pressure ring 21 is less than or equal to the diameter of the filter frame 31.

[0029] A further improvement is that the filtration accuracy of the filter cloth and filter screen 32 is 3μm.

[0030] A further improvement is that the filter screen 32 is a stainless steel wire filter screen.

[0031] A further improvement is that the stainless steel wire filter is made of 316L stainless steel wire.

[0032] A further improvement is that the filter cloth is a PTFE filter cloth.

[0033] A fluidized bed system, characterized in that it includes the catalyst filter described above.

[0034] The working principle of this utility model is as follows: When in use, the catalyst enters the tank from the inlet, first passes through the filter cloth, and then through the stainless steel wire mesh. The multiple filtrations improve the filtration effect and increase the processing efficiency. The filter cloth and stainless steel wire mesh are detachable and easy to install and remove, which facilitates subsequent maintenance, cleaning and replacement.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A catalyst filter, characterized in that: The device includes a tank body, on which a second filter unit is detachably installed on the lower inner wall. A first filter unit is detachably installed above the second filter unit. The first filter unit is a filter cloth. The second filter unit includes a filter screen. A filter screen frame is fixedly connected to the outer peripheral wall of the filter screen. The edge of the filter cloth is pressed onto the upper surface of the filter screen frame by several fixing rings.

2. The catalyst filter according to claim 1, characterized in that: The upper side wall of the tank is provided with an inlet, the bottom of the tank is provided with an outlet, a liquid replenishment port is provided on the side wall of the tank at the same level as the inlet, a vent is provided at the center of the top of the tank, an overflow port is provided on the side wall of the tank below the inlet, a purge port, a spare port and two pressure gauge ports are provided on the top of the tank, a set of level gauge ports is provided on the side wall of the tank above the first filter unit, a set of level gauge ports is provided on the side wall of the tank above the inlet, a set of thermometer ports is provided on the side wall of the tank above the level gauge ports below, three maintenance ports at different levels are provided on the side wall of the tank, and a manhole is provided on the front side wall of the tank.

3. The catalyst filter according to claim 1, characterized in that: The lower inner wall of the tank is provided with an annular support. Both the filter screen frame and the annular support are provided with several locking holes. The filter screen frame is installed on the annular support by bolts and locking holes.

4. The catalyst filter according to claim 3, characterized in that: The fixing ring has at least one first filter cloth fixing hole, and the filter screen frame has several second filter cloth fixing holes. The fixing ring presses the filter cloth onto the upper surface of the filter screen frame by means of bolts engaging the first and second filter cloth fixing holes.

5. The catalyst filter according to claim 4, characterized in that: The diameter of the fixed pressure ring is less than or equal to the diameter of the filter screen frame.

6. The catalyst filter according to claim 1, characterized in that: The filtration accuracy of the filter cloth and filter screen is 3μm.

7. The catalyst filter according to claim 1, characterized in that: The filter screen mentioned is a stainless steel wire filter screen.

8. The catalyst filter according to claim 7, characterized in that: The stainless steel wire filter is a 316L stainless steel wire filter.

9. The catalyst filter according to claim 1, characterized in that: The filter cloth is a PTFE filter cloth.

10. A fluidized bed system, characterized in that: The catalyst filter includes any one of claims 1-9.

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