Anti-blocking titanium dioxide production black slag conveying system
By designing an anti-clogging titanium dioxide production black slag conveying system, using backflush pipes and drain pipes to clean up clumps, combined with production water flushing, the problem of pipeline blockage caused by ilmenite deposition during black slag conveying was solved, achieving continuous conveying and stable production.
Patent Information
- Application Number
- CN202520464951.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-17
AI Technical Summary
During the production of titanium dioxide, the deposition of ilmenite during the transportation of black slag can cause blockages in the pipelines, affecting normal production.
The design includes a clog-resistant titanium dioxide production black slag conveying system, comprising a pulping tank, a buffer tank, a conveying pump, and control valves. Agglomerates are cleared through backflush pipes and drain pipes, and flushed with production water to ensure unobstructed pipeline flow.
It effectively prevents blockage of conveying pipelines, ensures normal transportation of black slag, avoids production shutdowns, and simplifies the process flow.
Smart Images
Figure CN223813112U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of chemical production equipment, and particularly relates to a black dregs conveying system for preventing blockage in titanium dioxide production. BACKGROUND
[0002] In the mud filter pressing procedure of titanium dioxide production, the mud sent by the previous procedure is filtered through a diaphragm filter press, and then is subjected to pressing, central washing, side washing, central back blowing, side blowing, pressure relief, and finally is unloaded to a black dregs beating-up barrel for beating-up. After a prescribed time of beating-up, the black dregs is sent to the subsequent procedure for treatment. In the process of conveying the black dregs, the black dregs is sent to a buffer tank through a conveying pump. Since the black dregs contains a certain amount of ilmenite, the ilmenite is prone to stratification in the black dregs solution. In addition, the conveying of the black dregs is discontinuous. The ilmenite naturally settles in the conveying pipe due to gravity, and is attached to the conveying pipeline, which causes the conveying pipeline to be blocked, and the black dregs cannot be normally conveyed out. The black dregs conveying pipeline is connected to the black dregs beating-up barrel. The blockage of the pipeline causes the mud filter pressing procedure to be forced to stop, which affects normal production. SUMMARY
[0003] The utility model discloses a black dregs conveying system for preventing blockage in titanium dioxide production to avoid the shortcomings of the prior art.
[0004] To achieve the above object, the utility model takes the technical scheme that a black dregs conveying system for preventing blockage in titanium dioxide production, including beating-up barrel, buffer tank, its characterized in that: the beating-up barrel upper portion connects into the residue pipe, and the beating-up barrel bottom outlet passes through the residue pipe and connects the conveying pump, is equipped with the first control valve on the residue pipe, and the conveying pump outlet passes through the residue pipe and connects the buffer tank, is equipped with the second control valve and the third control valve on the residue pipe, and the back blow pipe passes through the three -way pipe and connects the residue pipe.
[0005] The pipe section between the third control valve and the second control valve on the residue pipe is connected with a drain pipe, the end of the drain pipe is connected with the residue pipe, and the fourth control valve is arranged on the drain pipe.
[0006] The residue pipe is connected with a production water pipe through a three-way pipe, and the fifth control valve is arranged on the production water pipe.
[0007] The back blow pipe is connected with a self-process air pipe, and the sixth control valve is arranged on the back blow pipe.
[0008] The utility model has the advantages that the process is simple, the drain pipe and the back blow pipe are designed on the residue pipe, after the conveying of the black dregs is completed, the ilmenite agglomerate adhered to the residue pipe is blown to the black dregs buffer tank through the process air back blow, the residual material in the black dregs conveying pipeline is washed to the black dregs buffer tank by using the production water, finally, the residual water is returned to the beating-up barrel through the drain pipe, the main pipeline is emptied and drained, and the ilmenite deposition is prevented from blocking the main pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 The utility model discloses a schematic diagram;
[0010] In the drawing: 1 - beating barrel, 2 - delivery pump, 3 - buffer tank, L - residue pipe, L1 - residue pipe, L2 - residue pipe, L3 - emptying pipe, A - back flushing pipe, B - production water pipe;F1 - first control valve, F2 - second control valve, F3 - third control valve, F4 - fourth control valve, F5 - fifth control valve, F6 - sixth control valve. DETAILED DESCRIPTION
[0011] The principles and features of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.
[0012] See Figure 1 , a kind of anti-clogging titanium dioxide production black residue conveying system, including beating barrel 1, buffer tank 3, it is characterized by: the upper portion of beating barrel 1 is connected with residue pipe L, and the bottom outlet of beating barrel 1 is connected with delivery pump 2 by residue pipe L1, and first control valve F1 is arranged on residue pipe L1, and the outlet of delivery pump 2 is connected with buffer tank 3 by residue pipe L2, and second control valve F2 and third control valve F3 are arranged on residue pipe L2;Back flushing pipe A is connected with residue pipe L2 by three-way pipe, and the three-way pipe is connected on the pipe section between third control valve F3 and buffer tank 3.
[0013] The pipe section between third control valve F3 and second control valve F2 on residue pipe L2 is connected with emptying pipe L3, and the tail end of emptying pipe L3 is connected with residue pipe L1, and fourth control valve F4 is arranged on emptying pipe L3.
[0014] Residue pipe L1 is connected with production water pipe B by three-way pipe, and fifth control valve (F5) is arranged on production water pipe B.
[0015] Back flushing pipe A is connected with self-process air pipe, and sixth control valve F6 is arranged on back flushing pipe A.
[0016] Working process is as follows:
[0017] After each batch diaphragm filter press unloads, open fifth control F5 and first control F1, and production water enters beating barrel 1 from the bottom of beating barrel 1 through production water pipe B and residue pipe L1, to be used for black residue beating water replenishment, after water replenishment, close fifth control F5 and first control F1, and filter press unloading enters beating barrel 1 through residue pipe L, and the agitator in beating barrel 1 is started to beat pulp;
[0018] After beating, start delivery pump 2, open first control F1, second control F2 and third control F3, and black residue is conveyed to buffer tank 3 through residue pipe L1, delivery pump 2 and residue pipe L2.
[0019] After the delivery is completed, the sixth control valve F6 is opened, the third control valve F3 is closed, and compressed air is used to blow the agglomerates in the slag delivery pipe L2 into the buffer tank 3. After a period of back blowing, the sixth control valve F6 is closed, the fifth control valve F5 is opened, the first control valve F1 is closed, the delivery pump 2, the second control valve F2 and the third control valve F3 are opened, and the production water is used to flush the slag delivery pipe L2 to remove the residues in the slag delivery pipe L2 into the buffer tank 3.
[0020] After the flushing is completed, the fifth control valve F5 is closed, the first control valve F1 is opened, the second control valve F2 is closed, and the fourth control valve F4 is opened to pour the residual black slag and ore powder in the emptying pipe L3 back into the pulping vat 1. Then, the sixth control valve F6 is opened, and the third control valve F3 is closed to back blow the residual water and ore in the slag delivery pipe L2 into the buffer tank 3 again.
[0021] Description: The black slag delivery is discontinuous, the composition of the black slag solution is complex, and a large amount of ferrous sulfate is easily crystallized. The interval time of each batch delivery is generally 2-4 hours. After the delivery of each batch of black slag is completed, it is necessary to ensure that the slag delivery pipe L2 and the emptying pipe L3 are empty and unobstructed. When the next batch of black slag is delivered and the equipment is inspected and maintained, the emptying pipe L3 can be completely emptied and the slag delivery pipe L2 can be completely emptied.
Claims
1. A clog-resistant titanium dioxide production slag conveying system, comprising a pulping tank (1) and a buffer tank (3), characterized in that: The upper part of the pulping tank (1) is connected to the slag inlet pipe (L), and the bottom outlet of the pulping tank (1) is connected to the conveying pump (2) through the slag outlet pipe (L1). The slag outlet pipe (L1) is equipped with a first control valve (F1), and the outlet of the conveying pump (2) is connected to the buffer tank (3) through the slag conveying pipe (L2). The slag conveying pipe (L2) is equipped with a second control valve (F2) and a third control valve (F3). The backflush pipe (A) is connected to the slag conveying pipe (L2) through a three-way pipe. The three-way pipe is connected to the pipe section between the third control valve (F3) and the buffer tank (3).
2. The anti-clogging titanium dioxide production black slag conveying system as described in claim 1, characterized in that: The section of the slag conveying pipe (L2) between the third control valve (F3) and the second control valve (F2) is connected to the drain pipe (L3), and the end of the drain pipe (L3) is connected to the slag discharge pipe (L1). The drain pipe (L3) is equipped with a fourth control valve (F4).
3. The anti-clogging titanium dioxide production black slag conveying system as described in claim 1, characterized in that: The slag discharge pipe (L1) is connected to the production water pipe (B) via a tee pipe, and the production water pipe (B) is equipped with a fifth control valve (F5).
4. The anti-clogging titanium dioxide production black slag conveying system as described in claim 1, characterized in that: The backflush pipe (A) is connected to the process compressed air pipe, and a sixth control valve (F6) is provided on the backflush pipe (A).