CN212700221U

CN212700221U - Dry-type sealing treatment system for turning over and stirring dust-collecting slag of chlorination furnace

Info

Publication number: CN212700221U
Application number: CN202021231640.0U
Authority: CN
Inventors: 喻强; 周鸿舰; 陈爱祥; 陈勇
Original assignee: Titanium Industry Co Ltd of Pangang Group
Current assignee: Titanium Industry Co Ltd of Pangang Group
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-16
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a dry-type sealing treatment system for stirring dust-collecting slag of a chlorination furnace, belonging to the technical field of metallurgical waste residue treatment. Including agitator (7), agitator (7) are tube-shape structure and discharge end and are the toper structure, are equipped with spiral plate (72) on the toper structure inner wall of agitator (7), and the interval is equipped with a plurality of scraping wings (71) on agitator (7) middle part inner wall, and scraping wings (71) are the heliciform along agitator (7) length direction and arrange, and scraping wings (71) and agitator (7) inner wall junction are equipped with arc opening (711). This system sets up scraping wings (71) in agitator (7) middle part barrel, sets up spiral plate (72) at the discharge end, has prolonged the contact time of quick lime and chlorination waste residue, and both mix more evenly, realize the neutralization of quick lime and chlorination waste residue, accord with the requirement of environmental protection. Solves the problems that the existing dry method for treating the quicklime and the chloridized waste residue is not uniformly mixed and is easy to hydrolyze to generate hydrogen chloride and has large pollution.

Description

Dry-type sealing treatment system for turning over and stirring dust-collecting slag of chlorination furnace

Technical Field

The utility model relates to a dry-type sealing treatment system for stirring dust-collecting slag of a chlorination furnace, belonging to the technical field of metallurgical waste residue treatment.

Background

At present, the method for industrially preparing titanium tetrachloride mainly comprises a boiling chlorination method and a molten salt chlorination method, dust collection slag is generated in the production process of either method, the dust collection slag naturally sinks into a dust collection slag tank connected to the bottom of a dust collection device, and the dust collection slag tank needs to be replaced regularly. The main component of the dust-collecting slag is chloride, and part of the chloride in the dust-collecting slag needs to be treated in time and can be combined with water vapor in the air to generate hydrogen chloride (for example, the hydrogen chloride can be generated by hydrolyzing titanium tetrachloride, namely acid mist).

At present, domestic enterprises for producing titanium tetrachloride process dust-collecting slag by wet method and dry method. The wet method is characterized in that a flushing room is arranged below a slag discharge port of the dust collecting device, dust collecting slag is poured into the flushing room and flushed by water, waste gas generated by flushing is sent to a waste gas treatment system for leaching, waste water and slag are discharged into a sewage pool for centralized collection, solid slag is separated by a filter pressing device and sent to a slag field for landfill, and filtrate is sold as a byproduct hydrochloric acid. In part of domestic titanium factories, the hydrochloric acid as a byproduct produced by treating the dust-collecting slag by a wet method is difficult to sell due to small market capacity of peripheral hydrochloric acid, and only dry treatment can be adopted. The dry treatment method of the dust-collecting slag in China is extensive, the operation environment is poor, and a large amount of acidic flue gas generated in the process is easy to diffuse to enterprises around plants to cause environmental pollution.

The dry treatment is usually carried out by transporting a dust-collecting slag tank to a temporary slag transfer yard, manually taking off a cover of the dust-collecting slag tank, tipping the slag tank by a loader, pouring out the dust-collecting slag in the tank, then shoveling quicklime powder to cover the dust-collecting slag, then carrying out mixing and stirring by a bucket of the loader to carry out neutralization treatment, and loading the neutralized solid waste slag to the slag yard for landfill by an automobile. A large amount of dust is generated in the operation process of dry-method dust collection slag treatment, and because the dust collection slag contains a certain amount of titanium tetrachloride, the titanium tetrachloride can be immediately hydrolyzed when meeting air to generate a large amount of hydrogen chloride gas to escape, so that the operation environment is poor, and the environment-friendly requirement is not met. In the national patent with the application number of 201911258891.X and the name of a dry type treatment system and method for chlorinated dust-collecting slag, dust-collecting slag is subjected to dry treatment by manufacturing a closed room, but the technical scheme recorded in the patent does not thoroughly describe the turnover structure of a stirrer and a dust-collecting slag tank, and the conventional structure can cause uneven mixing of quicklime and the dust-collecting slag, so that the treatment effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing dry method for treating quicklime and dust collecting slag are not uniformly mixed and are easy to hydrolyze to produce hydrogen chloride and have large pollution.

The utility model provides a technical scheme that its technical problem adopted is: the dry type sealing treatment system for stirring the dust collecting slag of the chlorination furnace in a turning mode comprises a stirrer, wherein the stirrer is of a cylindrical structure, the discharge end of the stirrer is of a conical structure, a spiral plate is arranged on the inner wall of the conical structure of the stirrer, a plurality of material pushing plates are arranged on the inner wall of the middle of the stirrer at intervals, the material pushing plates are arranged spirally along the length direction of the stirrer, and an arc-shaped opening is formed in the joint of the material pushing plates and the inner wall of the stirrer.

In the system, the material pushing plate is of a trapezoidal structure with one wide end and one narrow end, and the end part of the material pushing plate far away from the conical structure is of a wide part.

Wherein, the material pushing plate is arranged obliquely in the system.

Furthermore, the system also comprises a supporting plate, wherein the supporting plate is arranged on the back side of the material pushing plate, one end of the supporting plate is connected with the inner wall of the stirrer, and the other end of the supporting plate is connected with the back side of the material pushing plate.

The system further comprises a dust collecting slag tank and a tank turning trolley, wherein a tank turning support of a semicircular ring structure is arranged at the upper end of the tank turning trolley, the tank turning support is driven to rotate through a motor, a slag tank fixing part is arranged on the upper side wall of an opening of the tank turning support, and the dust collecting slag tank is connected and fixed with the tank turning support through the slag tank fixing part and rotates along with the tank turning support.

Further, among the above-mentioned system the sediment jar mounting includes fixed block, bracing piece and retaining member, the fixed block sets up on the last lateral wall of turning over a jar support opening part, and the fixed slot has been seted up to the fixed block upper end, and the symmetry is provided with the through-hole on the fixed slot lateral wall, and the bracing piece level sets up on the symmetry both sides outer wall of the sediment jar that gathers dust, and in the bracing piece can block into the fixed slot, in the through-hole on the fixed block was worn to the retaining member.

Furthermore, in the system, the fixing block is of a structure in a shape of Chinese character 'shan', and coaxial through holes are formed in the side wall of the fixing block.

Further, the locking member in the above system is a bolt structure.

The utility model has the advantages that: the system further explains the turnover structure of the stirrer and the dust collecting slag tank in detail, and the system has better effect in actually treating dust collecting slag, thereby better increasing the mixing uniformity of the quicklime and the dust collecting slag, reducing the hydrolysis of the dust collecting slag and greatly protecting the environment. The novel calcium chloride mixer is characterized in that a material pushing plate is arranged in a cylinder in the middle of the mixer, a spiral plate is arranged at the discharge end, the structure prolongs the contact time of quick lime and dust collecting slag, the quick lime and the dust collecting slag are mixed more uniformly, and the quick lime and the dust collecting slag are neutralized, so that chloride in a mixture is changed into stable calcium chloride, and the requirement of environmental protection is met. And the arrangement of the tank turning support simplifies the turning structure of the dust collecting slag tank, has low manufacturing cost and stable operation, and improves the efficiency.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a schematic sectional view of the agitator apparatus of the present invention;

FIG. 3 is a schematic view of the agitator of the present invention;

FIG. 4 is a schematic view of the whole cross-sectional structure of the stirrer of the present invention;

FIG. 5 is a schematic structural view of the slag turning device of the present invention;

FIG. 6 is a schematic view of the structure of the tank-turning support of the present invention;

fig. 7 is a schematic view of the fixing block structure of the present invention.

Reference numerals: the device comprises a tank turning trolley 1, a tank turning support 11, a fixing block 12, a locking piece 13, a dust and slag collecting tank 2, a supporting rod 21, a trough 3, a screw conveyor 4, a quick lime hopper 5, a stirrer driving device 6, a stirrer 7, a stirrer 71, a material pushing plate 711, an arc-shaped opening 712, a supporting plate 72, a spiral plate 72, a slag hopper 8, a slag car 9 and a closed room 10.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 7, the utility model discloses a dry-type sealing treatment system for stirring of dust-collecting slag of chlorination furnace, including agitator 7, agitator 7 is tubular structure and discharge end and is the toper structure, is provided with the spiral plate 72 on the toper structure inner wall of agitator 7, and the interval is provided with a plurality of scraping wings 71 on the inner wall of agitator 7 middle part, scraping wings 71 is the heliciform along agitator 7 length direction and arranges, and scraping wings 71 and agitator 7 inner wall junction are provided with arc opening 711. The technical scheme is further supplemented by a technical scheme which is called a dry type chlorinated dust-collecting slag treatment system and a method and has the application number of 201911258891.X previously applied by the company, and the system is characterized in that a material pushing plate 71 is arranged in a cylinder body in the middle of a stirrer 7, the material pushing plate 71 is arranged along the length direction of the inner wall of the stirrer 7, and the material pushing plates 71 are multiple in number and are arranged at intervals along the circumferential direction of the stirrer 7, so that the material pushing plate 71 is in a spiral structure. In actual production, the stirrer 7 operates under the action of the stirrer driving device 6, and a drum-type structure which is horizontally arranged in the stirrer 7 can be further optimized, and the stirrer is arranged in a manner of inclining downwards by 5-10 degrees relative to the inlet direction towards the outlet direction. Quicklime from a quicklime hopper 5 through a screw conveyor 4 is mixed with dust collection slag in a trough 3 and then uniformly mixed again in a stirrer 7, so that the quicklime reacts with part of chloride in the dust collection slag, and the chloride in the mixture is changed into stable calcium chloride. Due to the arrangement of the material pushing plate 71, quicklime and dust-collecting slag are mixed more uniformly, and meanwhile, the mixture makes spiral motion along the outer wall of the material pushing plate 71, so that the mixing time is prolonged. Meanwhile, an arc-shaped opening 711 is arranged at the joint of the material pushing plate 71 and the inner wall of the stirrer 7, so that the mixture can conveniently penetrate through the arc-shaped opening 711 to realize the purposes of further mixing and feeding. Meanwhile, the spiral plate 72 is further preferably arranged at the discharge end of the stirrer 7, the arrangement of the spiral plate 72 further prolongs the contact time of the quick lime and the dust collecting slag, so that the quick lime and the dust collecting slag are mixed more uniformly, the quick lime and the dust collecting slag are neutralized, and the neutralized dust collecting slag entering the slag hopper 8 and finally conveyed away by the slag conveying vehicle 9 meets the requirement of environmental protection.

Preferably, in the above system, the material pushing plate 71 has a trapezoidal structure with a wide end and a narrow end, and the end of the material pushing plate 71 away from the tapered structure has a wide portion. It will be appreciated by those skilled in the art that the dust-collecting slag and quicklime converge into a mass after neutralization. The system is only a specific structure of the preferable material pushing plate 71, the material pushing plate 71 is of a trapezoid structure with a wide end and a narrow end, the end part of the material pushing plate 71 far away from the conical structure is of a wide part, the mixture of the dust collecting slag and the quick lime entering the stirrer 7 through the material groove 3 is divided into small blocks by a cup under the action of the material pushing plate 71, the impact on the stirrer 7 is reduced, and meanwhile, the abrasion of the material pushing plate 71 is reduced.

Preferably, the material pushing plate 71 in the above system is arranged obliquely. It will be understood by those skilled in the art that the present system is further preferred that the pusher plate 71 is disposed at an angle, which may be determined according to the diameter of the stirrer 7, and the angle of inclination may preferably be in the range of 45 to 80 °.

Preferably, the system further comprises a support plate 712, wherein the support plate 712 is disposed at the back side of the material pushing plate 71, and one end of the support plate 712 is connected to the inner wall of the stirrer 7, and the other end is connected to the back side of the material pushing plate 71. As will be appreciated by those skilled in the art, since the pusher plate 71 will be directly supported in contact with the mixture during impact transportation, in order to ensure the stability of the connection between the pusher plate 71 and the inner wall of the mixer 7, the present system is preferably fixed by the support plate 712 directly at both ends, and the support plate 712 acts like a reinforcing rib, thereby increasing the structural strength of the connection. The supporting plate 712 and the inner wall of the stirrer 7, the material pushing plate 71 and the inner wall of the stirrer 7 are preferably welded and fixed, and the connecting parts of the supporting plate 712 and the material pushing plate 71 are preferably welded and fixed.

Preferably, the system further comprises a dust collecting slag tank 2 and a tank turning trolley 1, wherein a tank turning support 11 with a semicircular ring structure is arranged at the upper end of the tank turning trolley 1, the tank turning support 11 is driven to rotate through a motor, a slag tank fixing part is arranged on the upper side wall of an opening of the tank turning support 11, and the dust collecting slag tank 2 is fixedly connected with the tank turning support 11 through the slag tank fixing part and rotates along with the tank turning support 11. The skilled person can understand that the system further defines the structures of the dust collecting slag tank 2 and the tank overturning trolley 1, and particularly, a tank overturning bracket 11 with a semicircular ring structure is arranged at the upper end of the tank overturning trolley 1, and the tank overturning bracket 11 is driven by a motor to rotate the tank overturning bracket 11, and particularly, a worm and gear structure can be preferably adopted to realize the purpose. And the upper side wall of the opening of the tank turning support 11 is provided with a slag tank fixing part, the dust collection slag tank 2 is fixedly connected with the tank turning support 11 through the slag tank fixing part, and meanwhile, the dust collection slag tank 2 can rotate along with the tank turning support 11, so that the purpose of removing slag from the dust collection slag tank 2 is realized.

Preferably, in the above-mentioned system the sediment jar mounting includes fixed block 12, bracing piece 21 and retaining member 13, fixed block 12 sets up on the last lateral wall of turning over jar support 11 opening part, and fixed slot 121 has been seted up to fixed block 12 upper end, and the symmetry is provided with through-hole 122 on the fixed slot 121 lateral wall, and bracing piece 21 level sets up on the symmetry both sides outer wall of gathering dust sediment jar 2, and in bracing piece 21 can block into fixed slot 121, retaining member 13 wears in through-hole 122 on fixed block 12. Those skilled in the art can understand that the system is only a specific structure of a preferable slag pot fixing member, and mainly comprises a fixing block 12, a supporting rod 21 and a locking member 13, wherein the fixing block 12 is arranged on the upper side wall of the opening of the tank turning support 11, the fixing block 12 and the tank turning support 11 are welded and fixed, a fixing groove 121 is formed in the upper end of the fixing block 12, through holes 122 are symmetrically formed in the side wall of the fixing groove 121, the axis of each through hole is perpendicular to the opening direction of the fixing groove, and the axes of the two through holes are coincident. The supporting rod 21 is horizontally arranged on the outer walls of the two symmetrical sides of the dust collection slag tank 2, the supporting rod 21 and the axis of the dust collection slag tank 2 are vertically arranged, the supporting rod 21 can be directly clamped into the fixing groove 121 through the structure, the locking part 13 penetrates through the through hole 122 in the fixing block 12, and the supporting rod 21 and the fixing block 12 are locked through the locking part 13.

Preferably, in the above system, the fixing block 12 is of a chevron structure, and the side walls thereof are provided with coaxial through holes 122. As can be understood by those skilled in the art, because the dust collecting slag tank 2 needs to be filled with dust collecting slag when in use, the weight is larger, the fixing block 12 is preferably in a chevron structure in the system, at this time, two support rods 21 are arranged at two symmetrical sides of the corresponding dust collecting slag tank 2 respectively and can be correspondingly clamped into two fixing grooves at the upper end of the fixing block 12, and the strength of the joint of the dust collecting slag tank 2 is high due to the structural arrangement.

Preferably, the locking member 13 in the above system is a bolt structure. As can be understood by those skilled in the art, in order to reduce the manufacturing cost of the system, the locking member 13 is preferably in a bolt structure, and one end of a screw rod of the bolt is actually inserted into the through hole, so that the support rod 21 can be limited in the fixing groove by the screw rod, and the dust and slag collecting tank 2 is prevented from falling off and affecting the use.

Claims

1. Dry-type sealed processing system of stirring of turning over sediment of chlorination furnace dust collection sediment, including agitator (7), agitator (7) are tube-shape structure and discharge end and are the toper structure, its characterized in that: the spiral plate (72) is arranged on the inner wall of the conical structure of the stirrer (7), a plurality of material pushing plates (71) are arranged on the inner wall of the middle part of the stirrer (7) at intervals, the material pushing plates (71) are spirally arranged along the length direction of the stirrer (7), and arc-shaped openings (711) are formed in the joints of the material pushing plates (71) and the inner wall of the stirrer (7).

2. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 1, wherein: the material pushing plate (71) is of a trapezoid structure with one wide end and one narrow end, and the end part, far away from the conical structure, of the material pushing plate (71) is of a wide part.

3. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 1, wherein: the material pushing plate (71) is obliquely arranged.

4. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 3, wherein: the stirring device is characterized by further comprising a supporting plate (712), wherein the supporting plate (712) is arranged on the back side of the material pushing plate (71), one end of the supporting plate (712) is connected with the inner wall of the stirrer (7), and the other end of the supporting plate (712) is connected with the back side of the material pushing plate (71).

5. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in any one of claims 1 to 4, wherein: still including gathering dust slag ladle (2) and turning over a jar dolly (1), turn over a jar dolly (1) upper end and be provided with jar support (11) that turn over of semicircular ring structure, and turn over a jar support (11) and rotate through motor drive, turn over the lateral wall of jar support (11) opening part and be provided with the slag ladle mounting, gather dust slag ladle (2) and be connected fixedly through slag ladle mounting and turn over a jar support (11) to it is rotatory along with turning over a jar support (11).

6. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 5, wherein: the slag pot mounting includes fixed block (12), bracing piece (21) and retaining member (13), fixed block (12) set up on the last lateral wall of turning over a jar support (11) opening part, and fixed block (12) upper end has seted up fixed slot (121), and the symmetry is provided with through-hole (122) on fixed slot (121) lateral wall, and bracing piece (21) level sets up on the symmetry both sides outer wall of the slag pot (2) of gathering dust, and in bracing piece (21) can block into fixed slot (121), in through-hole (122) on fixed block (12) are worn in retaining member (13).

7. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 6, wherein: the fixing block (12) is of a structure in a shape of Chinese character 'shan', and coaxial through holes (122) are formed in the side walls of the fixing block.

8. The dry-type sealing treatment system for the dust collecting slag turning and stirring of the chlorination furnace as claimed in claim 6, wherein: the locking piece (13) is of a bolt structure.