CN109364860B

CN109364860B - Timing and quantitative mixing and stirring device in trichlorosilane production process

Info

Publication number: CN109364860B
Application number: CN201811503602.3A
Authority: CN
Inventors: 徐春
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2020-11-20
Anticipated expiration: 2038-12-10
Also published as: CN109364860A

Abstract

The invention discloses a timing and quantitative mixing and stirring device in a trichlorosilane production process, which comprises a bracket and a tank body arranged at the upper end of the bracket, wherein a hydrolysis cavity is arranged in the tank body, a fixing piece is fixed at the left upper end of the hydrolysis cavity, a thick slag slurry inlet pipe and a circulating water inlet pipe which are communicated with the hydrolysis cavity are respectively arranged at the left end and the right end of the tank body, a slag material outlet pipe and a circulating water outlet pipe which are communicated with the hydrolysis cavity are arranged at the lower end of the tank body, a tail gas outlet pipe which is communicated with the hydrolysis cavity is arranged at the upper end of the tank body, a motor is arranged at the top end of the tank body. The invention has the advantages that: in the production process of trichlorosilane, alkali liquor can be injected into the hydrolysis cavity in a fixed time and quantity manner, so that the concentrated slag slurry can be fully hydrolyzed while no waste is caused to the alkali liquor.

Description

Timing and quantitative mixing and stirring device in trichlorosilane production process

Technical Field

The invention relates to a stirring device, in particular to a timing and quantitative mixing and stirring device in a trichlorosilane production process.

Background

In the production process of trichlorosilane, concentrated slag slurry is required to be injected into a hydrolysis tank, then an alkali liquor inlet pipe is opened, 20-30% sodium hydroxide alkali liquor is added to hydrolyze materials, and the qualified hydrolyzed materials are discharged into a silicon powder slag pool through a slag outlet pipe. But the alkaline liquor can not be mixed into the slurry quantitatively at regular time, thereby causing waste of the alkaline liquor or incomplete hydrolysis of the thick residue slurry.

Therefore, the stirring device is required to be mixed into the trichlorosilane production process at regular time and quantity, alkali liquor can be injected into the hydrolysis cavity at regular time and quantity in the trichlorosilane production process, and the concentrated slag slurry can be fully hydrolyzed while the alkali liquor is not wasted.

Disclosure of Invention

The invention mainly aims to provide a timing and quantitative mixing and stirring device in the trichlorosilane production process, which can inject alkaline liquor into a hydrolysis cavity in a timing and quantitative manner in the trichlorosilane production process, and can fully hydrolyze thick slag slurry while not wasting the alkaline liquor.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a timing and quantitative mixing device in the production process of trichlorosilane comprises a support and a tank body arranged at the upper end of the support, wherein a hydrolysis cavity is arranged in the tank body, a fixing part is fixed at the upper left end of the hydrolysis cavity, thick slag slurry inlet pipe and circulating water inlet pipe which are communicated with the hydrolysis cavity are respectively arranged at the left end and the right end of the tank body, a slag outlet pipe and a circulating water outlet pipe which are communicated with the hydrolysis cavity are arranged at the lower end of the tank body, a tail gas outlet pipe which is communicated with the hydrolysis cavity is arranged at the upper end of the tank body, a motor is arranged at the top end of the tank body, a stirring shaft which passes through the fixing part and then extends into the hydrolysis cavity is connected onto an output shaft of the motor, a stirrer is arranged at the lower end of the stirring shaft, an outer lye tank is arranged on the outer wall above the left side of the tank body, an inner lye tank which, the upper end of the inner alkaline liquid tank is provided with a fourth pipeline communicated with the upper right end inside the outer alkaline liquid tank, the lower end of the inner alkaline liquid tank is provided with a channel, the stirring shaft is provided with a timing and quantifying mechanism positioned in the fixing part, the stirring shaft is internally provided with a third pipeline communicated with the hydrolysis cavity, the third pipeline and the channel are matched with the timing and quantifying mechanism, the timing and quantifying mechanism comprises a first rotating disc and a second rotating disc which are sequentially keyed on the stirring shaft from top to bottom, the first rotating disc and the second rotating disc are rotationally arranged in the fixing part, the right end of the first rotating disc is provided with a through hole matched with the channel, the left end of the second rotating disc is provided with a second pipeline communicated with the third pipeline and matched with the channel, when the through hole is positioned at the rightmost side of the first rotating disc, the first rotating disc cuts off the upper end of the channel, the lower end of the channel is communicated with the second pipeline, when the through hole is positioned at the leftmost side of the first rotary disc, the channel is communicated with the through hole, the lower end of the channel is separated by the second rotary disc, the left side of the first rotary disc is provided with a timing separation mechanism for regularly separating the first pipeline, the side wall of the first rotary disc is provided with partial teeth, the timing separation mechanism comprises a gear which is meshed with the partial teeth on the first rotary disc and is rotationally arranged in the fixing part, a movable groove communicated with the first pipeline is vertically arranged in the fixing part, the lower side of the left end of the movable groove is connected with a viewing groove, the left end of the tank body is provided with a viewing hole communicated with the viewing groove, transparent glass is arranged in the viewing groove, the center of the gear is meshed with a reciprocating lead screw, the upper end of the reciprocating lead screw is provided with a separation part for separating the first pipeline, the reciprocating screw rod and the partition piece move up and down and are arranged in the movable groove without rotating.

Further, be equipped with directly over the upper shed of second pipeline and be located push mechanism in the first carousel, push mechanism includes the ejector pad and connects the connecting rod of ejector pad upper end, the lower extreme of first carousel is equipped with first recess, the upper end of first recess is equipped with the second recess, the top of second recess is connected with the spout through the round hole, the ejector pad sliding fit is in the first recess, the connecting rod passes be connected with the slider behind the round hole, the slider sliding fit is in the spout, the up end of second recess with be connected with the spring between the up end of ejector pad, the front side of ejector pad lower extreme is the inclined plane of top in the past to the below slope of back.

The invention has the advantages that: in the production process of trichlorosilane, alkali liquor can be injected into the hydrolysis cavity in a fixed time and quantity manner, so that the concentrated slag slurry can be fully hydrolyzed while no waste is caused to the alkali liquor.

Drawings

FIG. 1 is a schematic structural view according to the present invention;

FIG. 2 is a schematic view of a through-hole in communication with a channel according to the present invention;

FIG. 3 is a schematic view of the first conduit according to the present invention in an open configuration;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 1;

FIG. 6 is an enlarged view of section C of FIG. 2;

FIG. 7 is an enlarged view of section D of FIG. 3;

fig. 8 is a schematic structural view of a push block according to the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 to 8, a timing and quantitative mixing and stirring device for trichlorosilane production process comprises a bracket 3 and a tank body 1 arranged at the upper end of the bracket 3, wherein a hydrolysis cavity is arranged in the tank body 1, a fixing part is fixed at the left upper end of the hydrolysis cavity, a thick slag slurry inlet pipe 4 and a circulating water inlet pipe 5 which are communicated with the hydrolysis cavity are respectively arranged at the left end and the right end of the tank body 1, a slag outlet pipe 6 and a circulating water outlet pipe 7 which are communicated with the hydrolysis cavity are arranged at the lower end of the tank body 1, a tail gas outlet pipe 8 which is communicated with the hydrolysis cavity is arranged at the upper end of the tank body 1, a motor 2 is arranged at the top end of the tank body 1, a stirring shaft 10 which passes through the fixing part and then extends into the hydrolysis cavity is connected onto an output shaft of the motor 2, a stirrer 11 is arranged at the lower end of the stirring shaft 10, an outer lye tank 9 is arranged, the upper end of interior lye tank 12 is equipped with the fourth pipeline with the inside upper right end intercommunication of outer lye tank 9, and the lower extreme of interior lye tank 12 is equipped with the passageway, is equipped with the timing and quantification mechanism who is located the mounting on the (mixing) shaft 10, is equipped with the third pipeline with the chamber intercommunication of hydrolysising in the (mixing) shaft 10, and third pipeline, passageway all cooperate with timing and quantification mechanism, and the left side of timing and quantification mechanism is equipped with and is used for regularly cutting off first pipeline and with timing and quantification mechanism matched with timing and cut off the mechanism. The thick slag slurry enters from a thick slag slurry inlet pipe 4, and the hydrolysis water enters from a circulating water inlet pipe 5. Alkali liquor can be mixed in proportion in outer lye tank 9, and the alkali liquor that mixes enters into interior lye tank 12 through first pipeline after the mechanism is cut off at regular time with first pipeline open to the alkali liquor of mixing, and the alkali liquor access passage in interior lye tank 12 is through regularly quantitative mechanism with alkali liquor injection third pipeline, and alkali liquor flows into the chamber of hydrolysising from the third pipeline, and thick sediment thick liquid is hydrolyzed after alkali liquor, water stirring are mixed, and the sediment material that has hydrolyzed is gone out from sediment material exit tube 6. The hydrolyzed liquid is discharged from a circulating water outlet pipe 7, and the generated tail gas rises and is discharged from a tail gas outlet pipe 8.

The timing and quantifying mechanism comprises a first rotating disc 13 and a second rotating disc 14 which are sequentially keyed on the stirring shaft 10 from top to bottom, the first rotating disc 13 and the second rotating disc 14 are rotatably arranged in the fixing piece, a through hole matched with the channel is formed in the right end of the first rotating disc 13, a second pipeline 21 communicated with the third pipeline and matched with the channel is arranged at the left end of the second rotating disc 14, when the through hole is positioned on the rightmost side of the first rotating disc 13, the upper end of the channel is separated by the first rotating disc 13, the lower end of the channel is communicated with the second pipeline 21, when the through hole is positioned on the leftmost side of the first rotating disc 13, the channel is communicated with the through hole, the lower end of the channel is separated by the second rotating disc 14, a timing separation mechanism used for regularly separating the first pipeline is arranged on the left side of the first rotating disc 13, and part teeth matched with the timing separation mechanism are arranged on the. The timing and quantitative mechanism can add alkali liquor to the hydrolysis cavity in a timing and quantitative manner, and can fully hydrolyze the thick residue slurry without waste of the alkali liquor.

Regularly cut off mechanism include with the meshing of part tooth on first carousel 13 and establish gear 15 in the mounting with rotating, be equipped with the activity groove with first pipeline intercommunication perpendicularly in the mounting, the downside of activity groove left end is connected with observes the groove, jar body 1's left end is equipped with and observes the observation hole that the groove communicates, observe the inslot and be equipped with clear glass, gear 15's central meshing has reciprocal lead screw 16, the upper end of reciprocal lead screw 16 is equipped with the wall spare 17 that is used for cutting off first pipeline, reciprocal lead screw 16, wall spare 17 reciprocates and establishes in the activity inslot with not rotating. The timing partition mechanism can enable alkali liquor in the inner alkali liquor box 12 to be supplemented with alkali liquor in the outer alkali liquor box 9 at regular time, when the upper end of the channel is partitioned by the first rotating disc 13, part of alkali liquor in the channel flows back to the inner alkali liquor box 12, and due to the fact that the fourth pipeline is connected between the outer alkali liquor box 9 and the inner alkali liquor box 12, if the inner alkali liquor box 12 is full, the returned alkali liquor can be left in the fourth pipeline or returns to the outer alkali liquor box 9 through the fourth channel.

Be equipped with the push mechanism who is located first carousel 13 directly over the upper shed of second pipeline 21, push mechanism includes ejector pad 18 and connects connecting rod 19 in ejector pad 18 upper end, the lower extreme of first carousel 13 is equipped with first recess, the upper end of first recess is equipped with the second recess, the top of second recess is connected with the spout through the round hole, ejector pad 18 sliding fit is in first recess, connecting rod 19 is connected with slider 20 after passing the round hole, slider 20 sliding fit is in the spout, be connected with the spring between the up end of second recess and the up end of ejector pad 18, the front side of ejector pad 18 lower extreme is the inclined plane of slope from the top in the past to the below of back. The pushing mechanism can make the alkali liquor between the first rotating disc 13 and the second rotating disc 14 in the channel quickly enter the second pipeline 21.

The working principle is as follows: in the production process of trichlorosilane, thick slag slurry needing hydrolysis cleaning can be produced, alkali liquor can be proportioned and mixed in an outer alkali liquor box, a motor rotates after being started, the rotating speed of the motor is fixed, a stirrer is driven to rotate by a stirring shaft, the stirring shaft drives a first rotating disc and a second rotating disc to rotate anticlockwise when viewed from top, part of teeth on the first rotating disc drive a gear to rotate, the gear drives a reciprocating screw rod to move downwards firstly, the reciprocating screw rod drives a partition part to move downwards, a first pipeline is opened after the first rotating disc rotates for multiple circles, proportioned alkali liquor enters an inner alkali liquor box from the outer alkali liquor box, the reciprocating screw rod ascends after reaching the bottom, the partition part partitions the first pipeline, when a through hole is positioned at the leftmost side of the first rotating disc, the channel is communicated with the through hole, the second rotating disc partitions the lower end of the channel, the alkali liquor in the inner alkali liquor box flows into the channel, when the through hole is positioned at the rightmost, the first rotary disc separates the upper end of the channel, when the inner alkali liquor tank is full, the first rotary disc can extrude the alkali liquor in the channel back to the inner alkali liquor tank, the alkali liquor flowing back can be left in the fourth pipeline or can return to the outer alkali liquor tank through the fourth channel, the lower end of the channel is communicated with the second pipeline, the alkali liquor between the first rotary disc and the second rotary disc in the channel flows into the third pipeline through the second pipeline, the push block is just above the channel, the push block is popped out under the action of the spring, but the slide block can only slide to the bottom of the slide groove, the push block can only pop out for a certain distance, the alkali liquor between the first rotary disc and the second rotary disc in the channel can quickly enter the second pipeline, the inclined surface of the push block is in contact with the channel due to the rotation of the first rotary disc, the alkali liquor in the third pipeline is uniformly dispersed into the decomposition cavity through the rotation of the stirring shaft, the diffusion is uniform, the concentrated slag slurry enters the hydrolysis cavity from the concentrated slag slurry inlet, circulating water enters from the circulating water inlet pipe, thick slag slurry is hydrolyzed under the rotation of the stirrer, the thick slag slurry is hydrolyzed after being stirred and mixed by alkali liquor and water, hydrolyzed slag is discharged from the slag discharge pipe, hydrolyzed liquid is discharged from the circulating water outlet pipe, and generated tail gas rises and is discharged from the tail gas outlet pipe. When the alkali lye of interior lye incasement uses a quantitative time, the gear just drives reciprocal lead screw downwards again, first pipeline is opened, alkali lye enters into interior lye case from outer lye case, reciprocal lead screw rises after to the end, cut off the piece and cut off first pipeline, it is reciprocal so circulation, outer lye case is made by transparent plastic, can observe outside, outer lye case does not have alkali lye soon, the position of reciprocal lead screw is observed through the clear glass who looks at the inslot earlier, reciprocal lead screw when reaching the summit, various objects of ratio alkali lye are poured into to outer lye case, there is enough time to mix the ratio and accomplish alkali lye like this.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A timing and quantitative mixing and stirring device in a trichlorosilane production process is characterized in that: comprises a bracket (3) and a tank body (1) arranged at the upper end of the bracket (3), a hydrolysis cavity is arranged in the tank body (1), a fixing piece is fixed at the upper left end of the hydrolysis cavity, a thick slag slurry inlet pipe (4) and a circulating water inlet pipe (5) which are communicated with the hydrolysis cavity are respectively arranged at the left end and the right end of the tank body (1), a slag material outlet pipe (6) and a circulating water outlet pipe (7) which are communicated with the hydrolysis cavity are arranged at the lower end of the tank body (1), a tail gas outlet pipe (8) which is communicated with the hydrolysis cavity is arranged at the upper end of the tank body (1), a motor (2) is arranged at the top end of the tank body (1), a stirring shaft (10) which passes through the fixing piece and extends into the hydrolysis cavity is connected onto an output shaft of the motor (2), a stirrer (11) is arranged at the lower end of the stirring shaft (10), an outer alkaline, an inner alkaline liquid tank (12) connected with the outer alkaline liquid tank (9) through a first pipeline is arranged at the upper left side in the fixing piece, a fourth pipeline communicated with the upper right end inside the outer alkaline liquid tank (9) is arranged at the upper end of the inner alkaline liquid tank (12), a channel is arranged at the lower end of the inner alkaline liquid tank (12), a timing and quantifying mechanism located in the fixing piece is arranged on the stirring shaft (10), a third pipeline communicated with the hydrolysis cavity is arranged in the stirring shaft (10), the third pipeline and the channel are matched with the timing and quantifying mechanism, the timing and quantifying mechanism comprises a first rotating disc (13) and a second rotating disc (14) which are sequentially keyed on the stirring shaft (10) from top to bottom, the first rotating disc (13) and the second rotating disc (14) are rotationally arranged in the fixing piece, and a through hole matched with the channel is arranged at the right end of the first rotating disc (13), the left end of second carousel (14) be equipped with the third pipeline intercommunication and with passageway matched with second pipeline (21), when the through-hole is located the rightmost side of first carousel (13), first carousel (13) will the upper end of passageway cuts off, the lower extreme of passageway with second pipeline (21) intercommunication, when the through-hole is located the leftmost side of first carousel (13), the passageway with the through-hole intercommunication, second carousel (14) will the lower extreme of passageway cuts off, the left side of first carousel (13) is equipped with the timing that is used for regularly cutting off first pipeline and cuts off the mechanism, be equipped with partial tooth on the lateral wall of first carousel (13), the timing cuts off the mounting including with partial tooth meshing on first carousel (13) and establish with rotating gear (15) in the mounting, the interior perpendicular activity groove that is equipped with first pipeline intercommunication, the downside of activity groove left end is connected with and looks at the groove, the left end of the jar body (1) be equipped with look at the hole of looking at of groove intercommunication, look at the inslot and be equipped with clear glass, the central meshing of gear (15) has reciprocal lead screw (16), the upper end of reciprocal lead screw (16) is equipped with and is used for cutting off the wall piece (17) of first pipeline, reciprocal lead screw (16) separate that disconnected piece (17) reciprocate and establish with not rotating the activity inslot.

2. The timing and quantitative mixing and stirring device for the trichlorosilane production process according to claim 1 is characterized in that: be equipped with directly over the last open-ended of second pipeline (21) and be located push mechanism in first carousel (13), push mechanism includes ejector pad (18) and connects connecting rod (19) of ejector pad (18) upper end, the lower extreme of first carousel (13) is equipped with first recess, the upper end of first recess is equipped with the second recess, the top of second recess is connected with the spout through the round hole, ejector pad (18) sliding fit is in the first recess, connecting rod (19) pass be connected with slider (20) behind the round hole, slider (20) sliding fit is in the spout, the up end of second recess with be connected with the spring between the up end of ejector pad (18), the front side of ejector pad (18) lower extreme is the inclined plane of slope from the top to the rear below in the past.