Wear-resistant, corrosion-resistant and explosion-resistant glass fiber reinforced plastic hydrolysis equipment

Abstract

The utility model belongs to the technical field of organic silicon pulp and slag treatment, and particularly relates to wear-resistant corrosion-resistant explosion-proof glass fiber reinforced plastic hydrolysis equipment which comprises a hydrolysis stirring tank, a hydrolysis washing tower and a skirt for supporting the hydrolysis stirring tank, a gas phase inlet of the hydrolysis washing tower is connected with a gas phase outlet of the hydrolysis stirring tank, and a gas phase outlet of the hydrolysis washing tower is connected with a gas phase outlet of the hydrolysis stirring tank. A stirring shaft and stirring blades distributed on the stirring shaft are arranged in the hydrolysis stirring tank, a tank body of the hydrolysis stirring tank comprises a lining layer and a strength layer, the lining layer comprises an anti-corrosion layer and an anti-seepage layer, and the tank body sequentially comprises an anti-corrosion layer, an anti-seepage layer and a strength layer from inside to outside. The hydrolysis stirring tank disclosed by the utility model adopts an anti-corrosion structure with double linings, is integrally of a four-layer structure, and is manufactured by taking the glass fibers and the resin as main components, so that the manufactured hydrolysis stirring tank is corrosion-resistant and wear-resistant due to the double linings, and the glass fibers and the resin are non-conductors and are not easy to generate static electricity; and the tank body also has good anti-static property and silicon powder explosive resistance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of organic silicon slurry residue treatment, and particularly relates to a wear-resistant, corrosion-resistant and explosion-resistant glass fiber reinforced plastic hydrolysis equipment. BACKGROUND

[0002] Organic silicon slurry residue is a by-product generated in the production process of organic silicon monomer, including trichlorosilane, organosilicon chloroalkane, copper powder, silicon powder and the like, and is a solid-liquid mixture. If these mixtures are exposed to air, HCl will be generated to form strong acid mist and liquid, so the organic silicon slurry residue needs to be discharged after hydrolysis treatment.

[0003] The hydrolysis treatment generally adds the organic silicon slurry residue, water and lime milk into a hydrolysis stirring tank for fully mixing, so that the organic silicon slurry residue reacts with alkali to generate neutral or alkaline granular hydrolyzate which is collected to the bottom of the hydrolysis tank for recovery.

[0004] Since the hydrolysis process of trichlorosilane generates corrosive silicic acid and hydrogen chloride, and the silicon powder is easy to explode, the current hydrolysis equipment has general corrosion resistance, anti-static, explosion-proof and other performances. In the hydrolysis process, the hydrolysis equipment is easy to be damaged, the equipment loss is large, the production cost is increased, and safety accidents are easy to occur. UTILITY MODEL CONTENTS

[0005] In order to solve the problems existing in the prior art, the utility model provides a wear-resistant, corrosion-resistant and explosion-resistant glass fiber reinforced plastic hydrolysis equipment, wherein the hydrolysis stirring tank adopts a double-layer lining corrosion-resistant structure, has a four-layer structure as a whole, and is manufactured by taking glass fiber and resin as main components. The prepared hydrolysis stirring tank is not only double-lining corrosion-resistant and wear-resistant, but also has good anti-static property and anti-silicon powder explosion property because the glass fiber and the resin are both non-conductors and are not easy to generate static electricity.

[0006] The utility model adopts the specific technical scheme of:

[0007] A wear-resistant, corrosion-resistant and explosion-resistant glass fiber reinforced plastic hydrolysis equipment, which comprises a hydrolysis stirring tank, a hydrolysis washing tower and a skirt seat for supporting the hydrolysis stirring tank, the gas phase inlet of the hydrolysis washing tower is connected with the gas phase outlet of the hydrolysis stirring tank, a stirring shaft and stirring paddles distributed on the stirring shaft are arranged in the hydrolysis stirring tank, the stirring shaft has the freedom of rotation by means of a driving device, the tank body of the hydrolysis stirring tank comprises an inner lining layer and a strength layer, the inner lining layer comprises a corrosion-resistant layer and an anti-seepage layer, and the tank body comprises the corrosion-resistant layer, the anti-seepage layer and the strength layer from inside to outside in sequence.

[0008] The thickness of the corrosion-resistant layer is greater than or equal to 0.5 mm, and the corrosion-resistant layer is composed of resin and polyester felt.

[0009] The thickness of the anti-seepage layer is greater than or equal to 5 mm, and the anti-seepage layer is composed of glass fiber and resin.

[0010] The thickness of the strength layer is greater than or equal to 10 mm, and the strength layer is composed of glass fibers and resin.

[0011] An outer surface layer is further arranged between the anti-seepage layer and the strength layer, the thickness of the outer surface layer is greater than or equal to 0.5 mm, and the outer surface layer contains an ultraviolet ray absorption agent.

[0012] A plurality of groups of reinforcing rib plates are arranged around the connection between the nozzle of the hydrolysis stirring tank and the hydrolysis stirring tank, one end of each reinforcing rib plate is welded to the bottom of the nozzle, and the other side of each reinforcing rib plate is welded to the inner wall of the hydrolysis stirring tank, and the nozzle includes a main feeding port, a bypass feeding port, a stirring port and a gas phase outlet of the hydrolysis stirring tank.

[0013] A plurality of groups of baffle plates are arranged around the inner wall of the hydrolysis stirring tank, and the plane where each baffle plate is located forms an angle of 20-30° with a vertical plane.

[0014] A manhole is arranged in the side wall of the skirt, and the manhole penetrates the side wall of the skirt.

[0015] The hydrolysis washing tower comprises a tower body and a plurality of spray nozzles arranged on the tower body in a vertical direction, and the hydrolysis washing tower sequentially comprises, from top to bottom, a water distributor, a filler layer, a filler support grid and a filler support ring between a steam outlet and the spray nozzles.

[0016] The hydrolysis stirring tank has the following beneficial effects:

[0017] 1. The hydrolysis stirring tank has a double-layer lining corrosion-resistant structure, and an anti-seepage layer is additionally arranged on the basis of the original corrosion-resistant layer, so that the corrosion resistance and wear resistance of the hydrolysis stirring tank are improved.

[0018] 2. The hydrolysis stirring tank has a four-layer structure, and the thickness of each structure layer of the tank body can be adjusted according to different sizes.

[0019] 3. The main component of the traditional hydrolysis stirring tank is generally duplex steel, and the duplex steel is prone to static electricity during stirring, which may cause silicon powder explosion. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a structural schematic view of the hydrolysis stirring tank;

[0022] Figure 3 It is a sectional structural schematic view of the tank body side wall;

[0023] Figure 4 It is a top view structural schematic view of the hydrolysis stirring tank;

[0024] Figure 5 It is Figure 2 It is a sectional structural schematic view in A-A direction;

[0025] Figure 6 It is a structural schematic view of the hydrolysis washing tower;

[0026] In the drawing, 1, hydrolysis stirring tank, 2, hydrolysis washing tower, 3, skirt, 4, gas phase inlet, 5, gas phase outlet, 6, stirring shaft, 7, stirring paddle, 8, strength layer, 9, corrosion-proof layer, 10, anti-seepage layer, 11, outer surface layer, 12, reinforcing rib plate, 13, main feed inlet, 14, bypass feed inlet, 15, stirring port, 16, baffle, 17, manhole, 18, spray nozzle, 19, steam outlet, 20, water distributor, 21, filler layer, 22, filler support grid, 23, filler support ring. DETAILED DESCRIPTION

[0027] The utility model is further described below in combination with the drawings and specific embodiments:

[0028] Specific embodiments, as Figures 1-6 The utility model provides a kind of wear-resistant corrosion-resistant blast-resistant glass steel hydrolysis equipment, including hydrolysis stirring tank 1, hydrolysis washing tower 2 and skirt 3 for supporting hydrolysis stirring tank 1, the gas phase inlet 4 of hydrolysis washing tower 2 is connected with the gas phase outlet 5 of hydrolysis stirring tank 1, stirring shaft 6 and stirring paddle 7 distributed on stirring shaft 6 are provided in hydrolysis stirring tank 1, stirring shaft 6 has the freedom of rotation by means of driving device, the tank body of hydrolysis stirring tank 1 includes inner lining and strength layer 8, the inner lining includes corrosion-proof layer 9 and anti-seepage layer 10, the tank body includes corrosion-proof layer 9, anti-seepage layer 10 and strength layer 8 in turn from inside to outside.

[0029] Because the hydrolysis process of trichlorosilane can produce corrosive silicic acid and hydrogen chloride, and silicon powder is easy to explode, and the corrosion resistance, anti-static, explosion-proof and other performances of current hydrolysis equipment are more general, hydrolysis equipment is prone to damage in hydrolysis process, equipment loss is big, production cost is improved, and safety accident is prone to occur.

[0030] Therefore, the tank body in the utility model adopts double-layer lining corrosion-resistant structure, asFigure 3 As shown, the anti-permeation layer 10 is added on the basis of the original anticorrosive layer 9, improving the corrosion resistance and wear resistance of the hydrolysis stirring tank 1. Even if the inner anticorrosive layer 9 is corroded and causes the internal liquid to flow outwards, the anti-permeation layer 10 will block the liquid, thereby avoiding the occurrence of safety accidents caused by damage to the hydrolysis stirring tank 1.

[0031] In addition, the stirring shaft 6 is located at the center of the top of the tank body, and the hydrolysis washing tower 2 is arranged offset from the center of the top of the tank body. The two are arranged in a staggered manner, so that the stirring shaft 6 and the hydrolysis washing tower 2 are simultaneously arranged above the hydrolysis stirring tank 1.

[0032] The thickness of the anticorrosive layer 9 is ≥0.5mm. The anticorrosive layer 9 is composed of resin and polyester felt. The anticorrosive layer 9 is a corrosion-resistant layer, which is composed of DOW470 resin produced by Dow Chemical Company of the United States and 30g / m2 polyester felt produced by Pingdingshan Nonwoven Fabric Factory in Henan. The resin content is 95%, and the thickness is not less than 0.5mm.

[0033] The thickness of the anti-permeation layer 10 is ≥5mm. The anti-permeation layer 10 is composed of glass fiber and resin. 2400TEX alkali-free chopped fiber produced by Zibo Jinjing Company and DOW470 resin are used. The resin content is more than 70%. The thickness is not less than 5mm. This layer can effectively prevent the expansion of fine cracks in the inner surface layer to the outside, and has a double protection effect.

[0034] The thickness of the strength layer 8 is ≥10mm. The strength layer 8 is composed of glass fiber and resin. This layer protects the inner lining layer and resists the load on the tank body to ensure the rigidity and strength of the tank body. Alkali-free glass fiber is used, combined with circumferential winding and cross spiral winding. Resin is used. The resin content is 35%-40%, and the thickness is not less than 10mm.

[0035] An outer surface layer 11 is further arranged between the anti-permeation layer 10 and the strength layer 8. The thickness of the outer surface layer 11 is ≥0.5mm. The outer surface layer 11 contains an ultraviolet radiation absorbing agent. This layer uses the ultraviolet radiation absorbing agent produced by Changzhou 253 Factory, which can effectively prevent the aging phenomenon of the glass steel equipment under the action of ultraviolet radiation in the outdoor. The thickness is not less than 0.5mm.

[0036] In addition, after the equipment is formed, the wall thickness of the hydrolysis stirring tank 1 is not less than 16mm.

[0037] As Figure 3As shown, the hydrolysis stirring tank 1 in the utility model is four-layer structure, the hydrolysis stirring tank 1 can formulate different model sizes according to actual needs, and the thickness of each structural layer of the tank body can be adjusted adaptively according to different model sizes, with practicality, in addition, the main component of traditional hydrolysis stirring tank 1 is generally duplex steel, and the duplex steel is easy to produce static electricity in the stirring process, thereby causing silicon powder explosion, therefore, the tank body of the utility model mainly uses glass fiber and resin as the main component to replace the traditional duplex steel, the glass fiber and resin are both non-conductors, with excellent electrical insulation, and static electricity is not easy to produce, and the glass fiber has higher hardness and better wear resistance, so that the hydrolysis stirring tank 1 made has good silicon powder explosion resistance and wear resistance.

[0038] As Figure 2 and Figures 4-5 shown, the pipe opening of the hydrolysis stirring tank 1 is provided with a plurality of reinforcing rib plates 12 at the connecting place of the pipe opening and the hydrolysis stirring tank 1, one end of the reinforcing rib plate 12 is welded with the bottom of the pipe opening, and the other side of the reinforcing rib plate 12 is welded with the inner wall of the hydrolysis stirring tank 1, the pipe opening includes the main feed port 13, bypass feed port 14, stirring port 15 and gas phase outlet 5 of the hydrolysis stirring tank 1, since the hydrolysis stirring tank 1 in the utility model is mainly made of glass fiber and resin, the pipe opening of the tank body is generally connected by flange or bonded by resin, and the above-mentioned connecting mode is low in firmness, therefore, the reinforcing rib plate 12 is arranged to reinforce the circumference of the pipe opening.

[0039] The pipe opening with a diameter ≤100mm is reinforced by four reinforcing rib plates 12, and the gas phase outlet 5 is reinforced by eleven reinforcing rib plates 12.

[0040] As Figure 2 shown, the inner wall of the hydrolysis stirring tank 1 is provided with a plurality of baffle plates 16, the plane where the baffle plate 16 is located is at an angle of 20-30° with the vertical plane, and the arrangement of the baffle plate 16 can enhance the turbulence in the hydrolysis stirring tank 1, thereby improving the stirring effect, so that the organic silicon slurry and lime milk are fully mixed and reacted.

[0041] As Figure 2 shown, the side wall of the skirt 3 is provided with a manhole 17, and the manhole 17 penetrates the side wall of the skirt 3, and the manhole 17 can facilitate the inspection and maintenance of the bottom of the hydrolysis tank by the staff.

[0042] As Figure 6As shown, the hydrolysis scrubbing tower 2 comprises a tower body and a plurality of spray nozzles 18 arranged on the tower body in the vertical direction. The hydrolysis scrubbing tower 2 is sequentially provided from top to bottom with a water distributor 20, a packing layer 21, a packing support grid 22 and a packing support ring 23 between the steam outlet 19 and the spray nozzles 18. The hydrolysis scrubbing tower 2 can wash or adsorb the acidic components in the discharged tail gas, so that the discharged tail gas meets the environmental protection requirements.

Claims

1. A wear-resistant, corrosion-resistant, blast-resistant glass-reinforced plastic hydrolysis equipment, comprising a hydrolysis stirred tank (1), a hydrolysis washing tower (2), and a skirt (3) for supporting the hydrolysis stirred tank (1), a gas phase inlet (4) of the hydrolysis washing tower (2) is connected with a gas phase outlet (5) of the hydrolysis stirred tank (1), a stirring shaft (6) and stirring blades (7) distributed on the stirring shaft (6) are arranged in the hydrolysis stirred tank (1), the stirring shaft (6) has a rotating freedom degree by means of a driving device, a tank body of the hydrolysis stirred tank (1) comprises an inner lining layer and a strength layer (8), characterized in that, The inner lining layer comprises an anticorrosion layer (9) and an impermeable layer (10), and the tank body comprises the anticorrosion layer (9), the impermeable layer (10) and a strength layer (8) from inside to outside.

2. A wear-resistant, corrosion-resistant, explosion-resistant glass steel hydrolysis equipment according to claim 1, characterized in that, The thickness of the anticorrosion layer (9) is greater than or equal to 0.5 mm, and the anticorrosion layer (9) is composed of resin and polyester felt.

3. The abrasion-resistant, corrosion-resistant, explosion-resistant glass steel hydrolytic equipment according to claim 1, characterized in that, The thickness of the impermeable layer (10) is greater than or equal to 5 mm, and the impermeable layer (10) is composed of glass fiber and resin.

4. The abrasion-resistant, corrosion-resistant, explosion-resistant glass steel hydrolytic equipment according to claim 1, characterized in that, The thickness of the strength layer (8) is greater than or equal to 10 mm, and the strength layer (8) is composed of glass fiber and resin.

5. The abrasion and corrosion resistant blast resistant glass reinforced plastic hydrolysis plant as claimed in claim 1 wherein, An outer surface layer (11) is further arranged between the impermeable layer (10) and the strength layer (8), the thickness of the outer surface layer (11) is greater than or equal to 0.5 mm, and the outer surface layer (11) contains an ultraviolet light absorbing agent.

6. A wear-resistant, corrosion-resistant, explosion-resistant glass steel hydrolytic equipment according to claim 1, characterized in that, A plurality of reinforcing rib plates (12) are arranged around the connection between the pipe opening of the hydrolysis stirring tank (1) and the hydrolysis stirring tank (1), one end of the reinforcing rib plate (12) is welded to the bottom of the pipe opening, and the other side of the reinforcing rib plate (12) is welded to the inner wall of the hydrolysis stirring tank (1), and the pipe opening comprises a main feed port (13), a bypass feed port (14), a stirring port (15) and a gas phase outlet (5) of the hydrolysis stirring tank (1).

7. A wear-resistant, corrosion-resistant, explosion-resistant glass steel hydrolytic equipment according to claim 1, characterized in that, A plurality of baffle plates (16) are arranged around the inner wall of the hydrolysis stirring tank (1), and the plane of the baffle plate (16) forms an angle of 20-30° with the vertical plane.

8. A wear-resistant, corrosion-resistant, explosion-resistant glass steel hydrolytic equipment according to claim 1, characterized in that, A manhole (17) is arranged on the side wall of the skirt (3), and the manhole (17) penetrates the side wall of the skirt (3).

9. The abrasion and corrosion resistant blast resistant glass reinforced epoxy hydrolysis plant as claimed in claim 1 wherein, The hydrolysis washing tower (2) comprises a tower body and a plurality of spray nozzles (18) arranged on the tower body in the vertical direction, and the hydrolysis washing tower (2) comprises a water distributor (20), a filler layer (21), a filler support grid (22) and a filler support ring (23) arranged in the hydrolysis washing tower (2) from top to bottom between the steam outlet (19) and the spray nozzle (18).

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