CN211770341U

CN211770341U - Automatic furnace returning system for titanium tetrachloride slurry

Info

Publication number: CN211770341U
Application number: CN201922206654.0U
Authority: CN
Inventors: 龙志; 王攀峰; 苗亮亮; 苗雷; 陈科
Original assignee: Henan Longxing Titanium Industry Technology Co ltd
Current assignee: Henan Longxing Titanium Industry Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-27
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a titanium tetrachloride production technical field's an automatic stove system that returns of titanium tetrachloride mud, this system include chlorination stove and high-order mud groove, the play thick liquid mouth of high-order mud groove bottom is through the thick liquid mouth intercommunication that returns at first defeated thick liquid pipe and chlorination stove top, and is equipped with the solenoid valve on the first defeated thick liquid pipe, be equipped with temperature sensor in the chlorination stove, the chlorination stove outside is equipped with the controller of being connected with the temperature sensor electricity, the controller is connected with the on-off state of control solenoid valve with the solenoid valve electricity. The utility model discloses be equipped with temperature sensor in chlorination furnace to be equipped with the solenoid valve on first defeated thick liquid pipe, detect the interior temperature information of stove through temperature sensor, and according to the break-make of the temperature information control solenoid valve that detects, return the stove and recycle with the automation that realizes mud, it is high to have degree of automation, reacts rapid advantage.

Description

Automatic furnace returning system for titanium tetrachloride slurry

Technical Field

The utility model relates to a titanium tetrachloride production technical field, concretely relates to automatic stove system that returns of titanium tetrachloride mud.

Background

In the production process of crude titanium tetrachloride, a large amount of high-boiling-point chlorides contained in flue gas (the main component is gaseous titanium tetrachloride) at the outlet of a boiling chlorination furnace and solid particle impurities carried along with the gas flow are collected and condensed, most of the high-boiling-point chlorides are separated from the titanium tetrachloride, but a small amount of dust impurities are leached by the condensed titanium tetrachloride when passing through leaching equipment and enter the liquid crude titanium tetrachloride. The solid-liquid separation is carried out by the thickener, and impurities such as high boiling point chloride, solid particles and the like suspended in the titanium tetrachloride are gradually deposited at the bottom of the thickener to be in a slurry state. The titanium tetrachloride content in the part of slurry reaches more than 80 percent, and the part of slurry must be recycled to improve the metal recovery rate and eliminate the environmental pollution generated when the slurry slag is treated, so that better economic benefit and social benefit are achieved.

The current popular method is a slurry return method, namely, slurry is returned to a boiling chlorination furnace to recover titanium tetrachloride, and the specific procedures are as follows: and (3) conveying the slurry at the bottom of the settling tank to a high-level tank under the action of a pump, intermittently adding the slurry into a chlorination furnace when the temperature of the chlorination furnace is higher, vaporizing the titanium tetrachloride in the slurry, and allowing the residue to fall into the bottom of the furnace. However, in the actual production process, the intermittent slurry return operation is manually operated by workers, so that the reaction is slow, the labor intensity is high, and the chlorination effect is affected by the rapid temperature reduction in the furnace caused by improper operation.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an automatic furnace returning system for titanium tetrachloride slurry, which aims at solving the above technical problems.

The utility model discloses the technical scheme who adopts does:

the design is that the furnace system is returned in titanium tetrachloride slurry automation, including chlorination furnace and high-order mud groove, the play thick liquid mouth of high-order mud groove bottom feeds through with the returning thick liquid mouth at chlorination furnace top through first defeated thick liquid pipe, and is equipped with the solenoid valve on the first defeated thick liquid pipe, be equipped with temperature sensor in the chlorination furnace, the chlorination furnace outside is equipped with the controller that is connected with the temperature sensor electricity, the controller is connected with the solenoid valve electricity in order to control the on-off state of solenoid valve.

Preferably, the top of the high-level slurry tank is communicated with the bottom of the thickener through a second slurry conveying pipe, and a pump is arranged at one end of the second slurry conveying pipe extending into the thickener.

Preferably, a transparent observation window is arranged on the side wall of the high-position mud trough.

Preferably, a stirring mechanism is arranged in the thickener.

Preferably, a filter screen is arranged in the high-level mud trough.

Preferably, be equipped with the (mixing) shaft in the high-order mud pit, be equipped with the puddler on the (mixing) shaft, the bottom of (mixing) shaft runs through behind the high-order mud pit downwards and is connected with the driving motor transmission, the top upwards with filter screen fixed connection, the filter screen is cylindricly, and the one end that the second defeated thick liquid pipe stretched into the high-order mud pit is located the filter screen inboard.

Preferably, one end of the second slurry conveying pipe extending into the high-level slurry tank is rotatably connected with a slurry distributor through a bearing, a slurry chamber is arranged in the slurry distributor, the top of the slurry chamber is communicated with the second slurry conveying pipe, and a plurality of slurry distributing channels are arranged on the side wall of the slurry distributor along the tangential direction of the slurry chamber.

Compared with the prior art, the utility model has the advantages that:

1. the utility model discloses be equipped with temperature sensor in chlorination furnace to be equipped with the solenoid valve on first defeated thick liquid pipe, detect the interior temperature information of stove through temperature sensor, and according to the break-make of the temperature information control solenoid valve that detects, return the stove and recycle with the automation that realizes mud, it is high to have degree of automation, reacts rapid advantage.

2. The utility model is provided with the stirring shaft and the cylindrical filter screen in the high-level slurry tank, and the slurry is stirred by the stirring rod on the stirring shaft to improve the fluidity of the slurry, thereby reducing the probability of the slurry blocking in the first slurry conveying pipe; the bottom end of the filter screen is fixedly connected with the stirring shaft, and the filter screen is driven to rotate by the stirring shaft, so that the filtering efficiency of the filter screen on slurry is improved.

3. The utility model discloses the one end that stretches into high-order mud pit at second defeated thick liquid pipe is equipped with cloth thick liquid ware, can be with the comparatively even dispersion of mud to each department of filter screen through this cloth thick liquid ware to improve the filtration efficiency of mud.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a high level mud trough;

FIG. 3 is a schematic structural view of a slurry distributor;

the device comprises a chlorination furnace 1, a high-level slurry tank 2, a thickener 3, a first slurry conveying pipe 4, an electromagnetic valve 5, a second slurry conveying pipe 6, a pump 7, a temperature sensor 8, a transparent observation window 9, a stirring mechanism 10, a filter screen 11, a stirring shaft 12, a stirring rod 13, a driving motor 14, a bearing 15, a slurry distributor 16, a slurry chamber 17 and a slurry separating channel 18.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way. The unit module components, structures, mechanisms, sensors and other devices referred to in the following examples are all conventional and commercially available products unless otherwise specified.

Example 1: as shown in fig. 1, an automatic furnace returning system for titanium tetrachloride slurry comprises a chlorination furnace 1, a high-level slurry tank 2 and a thickener 3, wherein a slurry outlet at the bottom of the high-level slurry tank 2 is communicated with one end of a first slurry conveying pipe 4, the other end of the first slurry conveying pipe 4 is communicated with a slurry returning port at the top of the chlorination furnace 1, an electromagnetic valve 5 is arranged on the first slurry conveying pipe 4, and the high-level slurry tank 2 is higher than the chlorination furnace 1, so that slurry in the high-level slurry tank 2 enters the chlorination furnace 1 through the first slurry conveying pipe 4 under the action of gravity; the top of the high-level mud tank 2 is communicated with one end of a second mud conveying pipe 6, the other end of the second mud conveying pipe 6 is communicated with the bottom of the thickener 3, a pump 7 is arranged at one end of the second mud conveying pipe 6 extending into the thickener 3, and mud deposited at the bottom of the thickener 3 enters the high-level mud tank 2 through the second mud conveying pipe 6 under the action of the pump 7; be equipped with temperature sensor 8 in chlorination furnace 1, chlorination furnace 1 outside is equipped with the controller (not drawn) of being connected with temperature sensor 8 electricity, and this controller still is connected with solenoid valve 5 electricity, detects the interior temperature information of stove and sends the controller to through temperature sensor 8, and the controller is according to the on-off state of the temperature information control solenoid valve 5 that detects.

In the embodiment, in order to know the working condition of the chlorination furnace 1, a pressure gauge is also arranged on the chlorination furnace 1.

In this embodiment, in order to know the amount of mud in the high mud pit 2, a transparent observation window 9 is provided on the side wall of the high mud pit 2.

In the present embodiment, in order to crush large particles in the thickener 3, a stirring mechanism 10 is provided in the thickener 3.

Embodiment 2, this embodiment is a further improvement based on embodiment 1, except that: as shown in fig. 2 and 3, a filter screen 11 is arranged at the middle upper part in the high-level slurry tank 2, a stirring shaft 12 is arranged at the middle lower part in the high-level slurry tank 2, and a stirring rod 13 is arranged on the stirring shaft 12; the bottom of (mixing) shaft 12 runs through behind the high-order mud groove 2 downwards with driving motor 14 transmission connection, the top upwards with filter screen 11 fixed connection, this filter screen 11 is top open-ended cylindricly, and the one end that second defeated thick liquid pipe 6 stretched into high-order mud groove 2 is located filter screen 11 inboardly, the one end that second defeated thick liquid pipe 6 stretched into high-order mud groove 2 simultaneously is rotated through bearing 15 and is connected with cloth thick liquid ware 16, be equipped with mud room 17 in the cloth thick liquid ware 16, the top and the second defeated thick liquid pipe 6 intercommunication of mud room 17, be equipped with a plurality of branch thick liquid passageways 18 along mud room 17 tangential direction on cloth thick liquid ware 16 lateral wall.

The operation and use method of the automatic furnace returning system of titanium tetrachloride slurry comprises the following steps:

when the temperature in the chlorination furnace rises to 600 ℃, the controller controls the electromagnetic valve to be in an open state, so that the slurry at the bottom in the high-level slurry tank enters the chlorination furnace through the first slurry conveying pipe, the temperature in the chlorination furnace is reduced through vaporization of titanium tetrachloride in the slurry, and when the temperature in the chlorination furnace drops to 500 ℃, the controller controls the electromagnetic valve to be closed, and the temperature in the chlorination furnace begins to rise.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a titanium tetrachloride mud is automatic returns stove system, includes chlorination furnace and high-order mud groove, its characterized in that: the device comprises a chlorination furnace, a high-position slurry tank, a slurry outlet at the bottom of the high-position slurry tank, a slurry return port at the top of the chlorination furnace, a temperature sensor, a controller and an electromagnetic valve, wherein the slurry outlet at the bottom of the high-position slurry tank is communicated with the slurry return port at the top of the chlorination furnace through a first slurry conveying pipe, the electromagnetic valve is arranged on the first slurry conveying pipe, the temperature sensor is arranged in the chlorination furnace, the controller electrically connected with the temperature sensor is arranged on.

2. The automatic furnace returning system of titanium tetrachloride mud as claimed in claim 1, wherein: the top of the high-level mud tank is communicated with the bottom of the thickener through a second mud conveying pipe, and a pump is arranged at one end of the second mud conveying pipe extending into the thickener.

3. The automatic furnace return system for titanium tetrachloride mud as claimed in claim 2, wherein: and a transparent observation window is arranged on the side wall of the high-position mud tank.

4. The automatic furnace return system for titanium tetrachloride mud as claimed in claim 2, wherein: and a stirring mechanism is arranged in the thickener.

5. The automatic furnace returning system of titanium tetrachloride mud as claimed in claim 1, wherein: and a filter screen is arranged in the high-level mud tank.

6. The automatic furnace return system for titanium tetrachloride mud of claim 5, characterized in that: the high-order mud groove is equipped with the (mixing) shaft, be equipped with the puddler on the (mixing) shaft, the bottom of (mixing) shaft runs through behind the high-order mud groove downwards and is connected with the driving motor transmission, the top upwards with filter screen fixed connection, the filter screen is cylindricly, and the one end that the defeated thick liquid pipe of second stretched into high-order mud groove is located the filter screen inboard.

7. The automatic furnace return system for titanium tetrachloride mud of claim 6, characterized in that: one end of the second slurry conveying pipe extending into the high-level slurry tank is rotatably connected with a slurry distributor through a bearing, a slurry chamber is arranged in the slurry distributor, the top of the slurry chamber is communicated with the second slurry conveying pipe, and a plurality of slurry distributing channels are arranged on the side wall of the slurry distributor along the tangential direction of the slurry chamber.