Crystalline silicon industry catalyst resin column
By setting a fixed support plate and pressing plate in the catalyst resin column of the crystalline silicon industry, and loading the resin in a wire mesh bag to limit its floating area, the problems of resin escape and ineffective filling are solved, and the stability and cost reduction of the catalytic reaction are achieved.
Patent Information
- Application Number
- CN202422236494.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In the crystalline silicon industry, resin catalysts are prone to escape during the catalytic reaction, blocking channels or pipe openings, affecting the normal operation of subsequent processes and downstream devices, and the ineffective filling of resin increases the investment cost.
A catalyst resin column is designed, by installing a fixed support plate and a fixed pressure plate in the cylinder, loading the resin in a wire mesh bag, and then restricting it by the frame frame to avoid the resin from floating and escaping.
Effectively prevent resin from escaping, ensure the normal operation of the catalytic reaction system, reduce resins with ineffective space filling, reduce input costs, and improve the stability of catalytic reactions.
Smart Images
Figure CN223042204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crystalline silicon, and particularly relates to a catalyst resin column in the crystalline silicon industry. Background Art
[0002] The resin column is mainly composed of a shell, inlet and outlet pipes, resin packing, water caps, etc., and is usually made of plastic or metal materials. The inside of the resin column is filled with various resin particles, which are ion exchangers or adsorbents for ion exchange reactions or adsorption of target substances.
[0003] Currently, in the crystalline silicon industry of the "modified Siemens" method, the resin can be used as a catalyst and filled in the resin column in a bulk manner, and the material enters and exits through the resin column pipe orifice. The catalytic reaction in the resin column occurs between the resins, that is, the catalyst resin is loaded in the resin column, and the catalytic reaction occurs when the mixed material flows through the resin, or when the two reactants flow in countercurrent contact from the top and bottom of the resin respectively and react under the action of the resin. The reacted material finally flows out from the outlet water cap, and the small particles of resin will flow with the material and finally enter the pump inlet filter, increasing the number of system open loops, increasing the open loop risk and possibly introducing impurities into the system due to the open loop, affecting the product quality. Seriously, the resin may enter the pump body, causing damage to the pump equipment and affecting the normal production operation. Summary of the Utility Model
[0004] The purpose of the utility model is to develop a catalyst resin column in the crystalline silicon industry that can avoid resin escape and blockage of channels or pipe orifices, affecting the normal operation of subsequent processes or even downstream devices, and ensure the normal operation of the catalytic reaction system.
[0005] The utility model is realized by the following technical solutions:
[0006] A catalyst resin column in the crystalline silicon industry, comprising:
[0007] A cylinder;
[0008] A manhole provided on the cylinder;
[0009] A bottom side pipe and a top side pipe respectively provided in the lower and upper parts of the cylinder;
[0010] A plurality of Johnson screen water caps provided on the bottom side pipe and the top side pipe;
[0011] Wherein, a fixed support plate is provided in the cylinder above the bottom side pipe, and a fixed pressing plate is provided in the cylinder below the top side pipe. A plurality of layers of resin filled in a wire mesh bag are filled between the fixed support plate and the fixed pressing plate.
[0012] Optionally, the fixed support plate is horizontally provided 5 cm above the Johnson screen water cap on the bottom side pipe.
[0013] Optionally, support lugs welded to the inner wall of the cylinder are installed at the bottom of the fixed support plate, and the fixed support plate is a perforated plate or a grid plate.
[0014] Optionally, the fixed pressing plate is horizontally arranged 10 cm below the top-side pipe.
[0015] Optionally, support lugs welded to the inner wall of the cylinder are installed at the bottom of the fixed pressing plate, and the fixed pressing plate is a perforated plate or a grid plate.
[0016] Optionally, the wire mesh bag is made of stainless steel, and the filling coefficient of the resin in the wire mesh bag is 0.7.
[0017] Optionally, multiple layers of frame skeletons are stacked between the fixed support plate and the fixed pressing plate, and the wire mesh bags filled with resin are filled in the frame skeletons.
[0018] Optionally, the wire mesh bag is in a cuboid shape and is vertically placed on the frame skeleton sideways. The length of the wire mesh bag corresponds to that of the frame skeleton, and its two ends are in contact with the frame skeleton respectively. The height of the wire mesh bag corresponds to that of the frame skeleton.
[0019] Optionally, the frame skeleton is circular and its outer diameter is adapted to the inner diameter of the cylinder. The frame skeleton is divided into multiple parts. The side edges of adjacent parts are parallel to each other and in contact. The width of each part is smaller than the inner diameter of the manhole. There is a splicing seam between adjacent parts, and the splicing seams of the upper and lower adjacent frame skeletons are installed with staggered joints.
[0020] Optionally, the splicing seams of the upper and lower adjacent frame skeletons are arranged with a 45° central angle offset in the circumferential direction of the cylinder.
[0021] The beneficial effects of the present utility model are as follows:
[0022] In the present utility model, the resin is bundled by the wire mesh bag, and the wire mesh bag is restricted by the frame skeleton, the fixed support plate and the fixed pressing plate, restricting the floating area of the resin, avoiding the resin from escaping and blocking the channels or pipe orifices, which affects the subsequent processes or even the normal operation of the downstream devices, ensuring the normal operation of the catalytic reaction system, truly realizing the fixed-bed mode for the catalytic reaction of the resin, providing a stable reaction bed layer for the reaction materials, and also providing a place for the countercurrent contact of gas and liquid reactants for the high-boiling cracking system, improving its catalytic reaction effect;
[0023] Since the materials enter and exit the resin column from the top or bottom side of the cylinder body, the resin filled in the bottom head of the resin column has no reaction fluid flowing through, and it does not play a role in promoting the catalytic reaction of the materials. Instead, it only plays a role in occupying space to support the upper resin. The resin filled at the head is overqualified for its actual use, and its utilization value is zero. On the contrary, it increases the input cost of the resin. In the present utility model, a fixed support plate is arranged above the bottom side pipe, so that the head below the bottom side pipe is no longer filled with resin. On the premise of ensuring the same catalytic reaction effect, the resin filled in the invalid space inside the resin column is saved, and the input cost of the resin is reduced;
[0024] Since the resin has a small density and will float in the chlorosilane liquid, the setting of the fixed pressing plate restricts the activity area of the resin package and prevents it from floating up to the discharge port of the top side pipe or the top gas outlet to affect the normal operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] Figure 1 is a structural schematic diagram of the present utility model;
[0027] Figure 2 is a structural schematic diagram of the resin layer.
[0028] Reference numerals: 1, cylinder body; 2, drain port; 3, tail gas outlet; 4, bottom side pipe; 5, Johnson screen water cap; 6, top side pipe; 7, fixed pressing plate; 8, fixed support plate; 9, resin layer; 91, frame skeleton; 92, wire mesh bag; 93, splicing seam. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.
[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.
[0031] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
[0032] As Figure 1 and Figure 2 shown, the present utility model discloses a catalyst resin column for the crystalline silicon industry, which includes a cylinder body 1. A manhole (not shown in the figure) is provided on the cylinder body 1. A liquid discharge port 2 is provided at the bottom of the cylinder body 1. A tail gas outlet 3 is provided at the top of the cylinder body 1. A bottom side pipe 4 is provided inside the cylinder body 1 above the liquid discharge port 2. A top side pipe 6 is provided inside the cylinder body 1 below the tail gas outlet 3. A plurality of Johnson screen water caps 5 are provided on both the bottom side pipe 4 and the top side pipe 6.
[0033] A fixed support plate 8 is horizontally provided inside the cylinder body 1 at about 5 cm above the Johnson screen water cap 5 on the bottom side pipe 4. The bottom of the fixed support plate 8 is provided with lugs welded to the inner wall of the cylinder body 1. The fixed support plate 8 is a perforated plate or a grid plate.
[0034] A fixed pressing plate 7 is horizontally provided inside the cylinder body 1 at about 10 cm below the top side pipe 6. The bottom of the fixed pressing plate 7 is provided with lugs welded to the inner wall of the cylinder body 1. The fixed pressing plate 7 is a perforated plate or a grid plate.
[0035] A plurality of resin layers 9 are provided between the fixed support plate 8 and the fixed pressing plate 7. Each resin layer 9 includes a frame skeleton 91, and the frame skeleton 91 is filled with a plurality of wire mesh bags 92 filled with resin.
[0036] The frame skeleton 91 is circular and its outer diameter is adapted to the inner diameter of the cylinder body 1. The frame skeleton 91 of the lowermost layer is installed on the fixed support plate 8. From bottom to top, the frame skeletons 91 of the plurality of resin layers 9 are stacked in sequence. The frame skeleton 91 of the uppermost layer contacts the fixed pressing plate 7. The frame skeleton 91 is divided into three parts. The sides of adjacent two parts are parallel to each other and in contact. The width of each part is less than the inner diameter of the manhole, which is convenient for feeding it into the cylinder body 1 through the manhole for installation.
[0037] Since the frame skeleton 91 is divided into multiple parts, there are splicing seams 93 between adjacent parts. To prevent materials from taking shortcuts between the splicing seams 93 of the frame skeleton 91, resulting in the materials not being able to come into full contact with the resin for catalytic reaction, the upper and lower adjacent resin layers 9 are installed with staggered joints at the splicing seams 93 of the frame skeleton 91. The splicing seams 93 of the upper and lower adjacent frame skeletons 91 are arranged with a 45° central angle offset in the circumferential direction of the cylinder 1.
[0038] The wire mesh bag 92 is made of stainless steel. Considering the expansibility of the resin during operation, the filling coefficient of the resin in the wire mesh bag 92 is 0.7. The wire mesh bag 92 is in the shape of a cuboid and is placed vertically on the frame skeleton 91 in a blade-like shape. The length of the wire mesh bag 92 corresponds to that of the frame skeleton 91, and its two ends are respectively in contact with the frame skeleton 91. The height of the wire mesh bag 92 corresponds to the height of the frame skeleton 91 and can be slightly higher than the frame skeleton 91, so that the top of the wire mesh bag 92 is in close contact with the upper layer of resin to avoid gaps.
[0039] The above embodiments are only the preferred embodiments of the present invention and do not limit the technical solutions of the present invention. Any technical solutions that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the present invention.
Claims
1. A catalyst resin column for the crystalline silicon industry, characterized in that: include: Cylinder; Manhole, provided on the cylinder; The bottom side pipe and the top side pipe are respectively arranged at the lower part and the upper part of the cylinder body; Multiple Johnson mesh water caps, provided on the bottom side tube and the top side tube; Among them, a fixed support plate is provided in the cylinder above the bottom side tube, and a fixed pressure plate is provided in the cylinder below the top side tube. Multiple layers of resin in a wire mesh bag are filled between the fixed support plate and the fixed pressure plate.
2. The catalyst resin column for the crystalline silicon industry according to claim 1, characterized in that: The fixed support plate is horizontally arranged 5 cm above the Johnson net water cap on the bottom side pipe.
3. The catalyst resin column for the crystalline silicon industry according to claim 2, characterized in that: A support ear welded to the inner wall of the cylinder is installed at the bottom of the fixed support plate, and the fixed support plate is a porous plate or a grid plate.
4. The catalyst resin column for the crystalline silicon industry according to claim 1, characterized in that: The fixed pressing plate is horizontally arranged 10 cm below the top side tube.
5. The catalyst resin column for the crystalline silicon industry according to claim 4, characterized in that: A support ear welded to the inner wall of the cylinder is installed at the bottom of the fixed pressing plate, and the fixed pressing plate is a porous plate or a grid plate.
6. The catalyst resin column for the crystalline silicon industry according to claim 1, characterized in that: The wire mesh bag is made of stainless steel, and the filling coefficient of the resin in the wire mesh bag is 0.
7.
7. The catalyst resin column for the crystalline silicon industry according to claim 1, characterized in that: A plurality of layers of frame skeletons are stacked between the fixed support plate and the fixed pressure plate, and the steel wire mesh bag filled with resin is filled in the frame skeleton.
8. The catalyst resin column for the crystalline silicon industry according to claim 7, characterized in that: The wire mesh bag is in a rectangular shape and is placed vertically on the frame frame. The length of the wire mesh bag corresponds to the frame frame, its two ends are respectively in contact with the frame frame, and the height of the wire mesh bag corresponds to the height of the frame frame.
9. The catalyst resin column for the crystalline silicon industry according to claim 7, characterized in that: The frame skeleton is circular and its outer diameter is adapted to the inner diameter of the cylinder. The frame skeleton is divided into multiple parts. The sides of two adjacent parts are parallel and in contact with each other. The width of each part is smaller than the inner diameter of the manhole. There is a splicing seam between two adjacent parts. The splicing seams of the upper and lower adjacent frame skeletons are installed in a staggered manner.
10. The catalyst resin column for the crystalline silicon industry according to claim 9, characterized in that: The joint seams of the two upper and lower adjacent frame frames are staggered at a central angle of 45° in the circumferential direction of the cylinder.