CN213386779U - Dustproof feeding device of smelting reaction tank - Google Patents

Abstract

The utility model discloses a smelt reaction tank feed arrangement that prevents dust, including inlet pipe I, inlet pipe II, dustproof retaining ring, inlet pipe telescoping device, liquid level induction system and observation clearance hole. The dustproof check ring is arranged at the discharge port of the feed pipe I and extends into the solution; the feeding pipe II is positioned above the feeding pipe I, one end of the feeding pipe II is sleeved into the feeding pipe I extending out of the groove surface, and the overlapping of the feeding pipe II and the feeding pipe I is kept for 1000-1500 mm. Simultaneously, open an observation clearance hole directly over the inlet pipe, the during operation adopts the bolt seal, when needing the clearance, opens sealed just can easily clear up the inlet pipe, and it can to close after the clearance. The utility model discloses can effectively avoid the dust by suction exhaust system's problem, greatly reduced the dust content in the discharge steam, reduced the pollution to the environment, reduced the waste of material, improved production efficiency, reduced the clearance number of times, and realized the problem of not stopping production clearance inlet pipe.

Description

Dustproof feeding device of smelting reaction tank

Technical Field

The utility model relates to a dustproof feed arrangement of smelting reaction tank belongs to smelting reaction tank equipment technical field.

Background

The smelting reaction tank needs to finish the processes of feeding, solution feeding, mixing, heating, stirring and the like, and harmful gases such as hot gas, acid mist and the like are generated; the reaction tank air draft system is characterized in that a hole is formed in a reaction tank cover, an air draft pipeline is arranged to suck hot gas, acid mist and other harmful gases out of the top chamber of a workshop, and therefore the working environment in the workshop is improved; however, the hot gas and the acid mist are extracted by the air extraction pipeline, and simultaneously, a part of fine materials thrown into the feeding pipe can be extracted.

According to measurement and calculation, about 100 kilograms of fine materials in a certain smelting reaction tank are pumped away by air draft every day, and under the action of acid mist and hot air, the fine materials are caked to block an air draft pipe and need to be cleaned regularly; the hot gas discharged from the roof of the factory building also contains a large amount of dust which falls into the house and must be cleaned regularly, so that the loss of materials is also caused while the environmental protection risk is high.

In addition, the feeding pipe, the buried scraper conveyor and the reaction tank cover plate are sealed, when the feeding pipe is blocked, the feeding pipe is difficult to clean, and only the feeding pipe is removed in a production halt mode in severe cases, so that the feeding pipe is difficult to clean, and the production is influenced and the maintenance is difficult.

Disclosure of Invention

In order to solve the technical problems, the air exhaust pipe can exhaust hot air, acid mist and the like in the groove and simultaneously avoid the extraction of materials, and the problems that the feeding pipe is difficult to clean and the like are solved.

To the problem that the reaction tank feeding exhaust column exists, the utility model provides a smelt dustproof feed arrangement of reaction tank, its technical scheme is:

including inlet pipe I, inlet pipe II, dustproof retaining ring, inlet pipe telescoping device, liquid level induction system and observation clearance hole.

The dustproof check ring is arranged at the discharge port of the feed pipe I and extends into the solution; the feeding pipe II is positioned above the feeding pipe I, one end of the feeding pipe II is sleeved into the feeding pipe I extending out of the groove surface, and the overlapping of the feeding pipe II and the feeding pipe I is kept for 1000-1500 mm.

The other end of the feeding pipe II is connected with the buried scraper conveyor through a flange; the inlet pipe telescoping device contains base, liquid level induction system, hydraulic control system and flexible head, the pedestal mounting is on the capping of reaction tank, flexible head adopts the bolt to be connected with inlet pipe I, hydraulic control system with install liquid level induction system on the dustproof retainer ring meets, hydraulic control system can drive inlet pipe I through flexible head and stretch out and draw back from top to bottom along with the liquid level change.

Observe the upper cover plate department that the clearance hole set up the buried scraper blade machine directly over inlet pipe II, it is sealed that normal during operation adopts the bolt to add the cushion, when needing to clear up the inlet pipe, open the bolt and just can clear up, later close again can.

The utility model discloses a theory of operation does:

when the temperature meets the reaction requirement and the liquid level reaches 20-50 mm of the dustproof check ring, the exhaust fan is started, the induction system and the hydraulic system device are started, the feeding pipe achieves the automatic telescopic effect, the buried scraper machine is started to feed after the stirring device is started, the material enters the feeding pipe I from the buried scraper machine through the feeding port to the feeding pipe II, then enters the solution from the square dustproof check ring to perform a chemical reaction with the dilute acid, and hot gas and acid mist generated by the reaction are extracted from the exhaust pipe by the exhaust system; the materials almost enter the solution and are not pumped away due to the function of the dustproof check ring; when the feeding pipe is sensed to be blocked for a certain time during operation, the observation cleaning hole is opened, the feeding pipe is cleaned by a special tool or a steel pipe, and the feeding pipe is fixed and tightly sealed by a bolt after the cleaning is finished.

The utility model has the advantages that:

after the utility model is implemented, on one hand, the problem that dust is sucked into an air draft system is effectively avoided, the dust content in the discharged hot air is greatly reduced, the pollution to the environment is reduced, and the waste of materials is reduced; on the other hand, the production efficiency is improved, the original air draft pipeline which is cleaned almost once every week is changed into the one which is cleaned about every half year after implementation, and the problem of cleaning the feeding pipe without stopping production is solved.

Drawings

FIG. 1 is a schematic view of a current reactor feed draft system.

Fig. 2 is a schematic view of a reaction tank feeding and exhausting system additionally provided with the dustproof retainer ring device of the utility model.

In the figure: 1-feeding pipe I, 2-feeding pipe II, 3-observation cleaning hole, 4-exhaust pipe, 5-dustproof retainer ring, 6-feeding pipe expansion device, 61-liquid level sensing device, 7-buried scraper, 100-reaction tank, 101-stirring device and 102-tank cover.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 2, a dustproof feeding device of a smelting reaction tank is characterized in that a dustproof check ring 5 is arranged at an outlet of a feeding pipe I1, and the dustproof check ring 5 extends into a solution by 20-50 mm.

Preferably, the dustproof baffle ring 5 is a square anti-corrosion stainless steel plate with a thickness of 6 mm.

Preferably, in order to realize that dustproof retaining ring 5 stretches into solution, the inlet pipe research design has had automatic flexible function, adopts to set up liquid level induction system 61 on dustproof retaining ring 5 and links to each other with inlet pipe automatic telescoping device 6, and it is flexible to drive I1 of inlet pipe through inlet pipe automatic telescoping device 6, ensures that the inlet pipe is along with the change of the liquid level of reaction tank 100 and automatic rising, keeps dustproof retaining ring 5 to stretch into solution throughout. This effectively avoids the problem of dust being drawn into the extraction duct 4.

Preferably, the feeding pipe I1 is an anticorrosive stainless steel pipe with the inner diameter of 300 mm, and the feeding pipe II 2 is an anticorrosive stainless steel pipe with the outer diameter of 300 mm.

Preferably, a circular observation cleaning hole 3 with the diameter of 200 mm is formed in the upper cover plate of the buried scraper conveyor 7 right above the feeding pipe II 2, the buried scraper conveyor is sealed by bolts and rubber pads during normal work, the buried scraper conveyor can be cleaned by opening the bolts when the feeding pipe needs to be cleaned, and then the buried scraper conveyor is closed.

Example 1

Firstly, a square dustproof retainer ring 5 is processed, an anti-corrosion stainless steel plate with the thickness of 6 mm is adopted, four plates with the width of 600 mm and the length of 800 mm are cut out and are welded into a hollow cuboid (with the side length of 600 mm and the height of 800 mm) in a surrounding mode, one surface of the cuboid is open, and a circular hole (used for being connected with the feeding pipe I1 in a welding mode) with the diameter of 300 mm corresponding to the feeding pipe I1 is formed in the middle of the other surface of the cuboid by using a 600 mm multiplied by 600 mm mode.

And secondly, emptying the solution in the reaction tank 100, building a steel pipe frame in the reaction tank, welding and connecting a square dustproof check ring 5 (one surface provided with a circular hole with the diameter of 300 mm) with the tail end of a feeding pipe I1 (the inner diameter of the feeding pipe is 300 mm), and extending the other end of the feeding pipe I1 out of the tank surface by 1500 mm-2000 mm through a tank cover 102 of the reaction tank 100 for connecting with a feeding pipe II 2 (the outer diameter of the feeding pipe is 300 mm).

And thirdly, installing the liquid level sensing device 61, fixing the liquid level sensing device 61 after the anticorrosion treatment by using an anticorrosion stainless steel bolt on the outer side of the opening surface of the dustproof check ring 5, and requiring that the sensing head of the liquid level sensing device is consistent with (namely parallel to) the bottom of the opening surface of the dustproof check ring 5.

Fourthly, mounting a feeding pipe II 2, wherein the outer diameter of the feeding pipe II 2 is 300 mm, firstly, one end of the feeding pipe II 2 is sleeved into the feeding pipe I1 extending out of the groove surface, the feeding pipe II is overlapped by 1000 mm-1500 mm, and the other end of the feeding pipe II is connected with the buried scraper conveyor 7 in a mode of flange plate bolt connection.

The fifth step, the installation of inlet pipe telescoping device 6, this inlet pipe telescoping device 6 contain base, liquid level induction system 61, hydraulic control system and flexible head, the pedestal mounting is on the capping 102 of reaction tank 100, flexible head adopts the bolt to be connected and fixed with inlet pipe I1, hydraulic control system with install liquid level induction system 61 on the dustproof retaining ring 5 meets, hydraulic control system can drive inlet pipe I1 through flexible head about the liquid level changes.

And sixthly, observing the arrangement of the cleaning holes 3, opening a circular observation cleaning hole 5 with the diameter of 200 millimeters at a cover plate on the buried scraper conveyor 7 right above the feeding pipe II, sealing by adopting a bolt and a rubber mat during normal work, opening the bolt to clean when the feeding pipe needs to be cleaned, and then closing the feeding pipe.

After the installation is finished and all impurities in the tank body are cleaned, adding the solution again and heating; when the temperature meets the reaction requirement and the liquid level reaches 20-50 mm of the dustproof check ring, the exhaust fan is started, the liquid level sensing system and the hydraulic control system are started, the feeding pipe achieves the automatic telescopic effect, the embedded scraper 7 is started to feed after the stirring device is started, the material flows from the embedded scraper 7 to the feeding pipe II 2 through the feed opening and then to the feeding pipe I1, then enters the solution from the square dustproof check ring 5 to carry out chemical reaction with dilute acid, and hot gas and acid mist generated by the reaction are pumped away from the exhaust pipe 4 by the exhaust system; the materials almost enter the solution and are not pumped away due to the function of the dustproof check ring 5; when the feeding pipe is sensed to be blocked for a certain time during operation, the observation cleaning hole 5 is opened, the feeding pipe is cleaned by a special tool or a steel pipe, and the feeding pipe is fixed and tightly sealed by a bolt after the cleaning is finished.

Claims (5)

1. The utility model provides a smelt retort dustproof feed arrangement which characterized in that:

the device comprises a feeding pipe I (1), a feeding pipe II (2), a dustproof check ring (5), a feeding pipe telescopic device (6), a liquid level sensing device (61) and an observation cleaning hole (3);

the dustproof check ring (5) is arranged at the discharge port of the feed pipe I (1), and the dustproof check ring (5) extends into the solution;

the feeding pipe II (2) is positioned above the feeding pipe I (1), one end of the feeding pipe II (2) is sleeved into the feeding pipe I (1) extending out of the groove surface, and the overlapping of the feeding pipe II (2) and the feeding pipe I (1) is kept between 1000 mm and 1500 mm; the other end of the feeding pipe II (2) is connected with the buried scraper conveyor (7) through a flange;

the feeding pipe telescopic device (6) comprises a base, a liquid level sensing device (61), a hydraulic control system and a telescopic head, wherein the base is installed on a groove cover (102) of the reaction groove (100), the telescopic head is connected with the feeding pipe I (1) through a bolt, the hydraulic control system is connected with the liquid level sensing device (61) installed on the dustproof check ring (5), and the hydraulic control system can drive the feeding pipe I (1) to be telescopic up and down along with the liquid level change through the telescopic head;

and the observation cleaning hole (3) is formed in the upper cover plate of the buried scraper conveyor right above the feeding pipe II (2).

2. The dustproof feeding device of claim 1, wherein:

the liquid level sensing device (61) is fixed on the outer side of the bottom of one surface, located on the solution, of the dustproof check ring (5).

3. The dustproof feeding device of claim 1, wherein:

the dustproof check ring (5) is a hollow cuboid.

4. A dust control feed arrangement according to any one of claims 1 to 3, wherein:

the dustproof retainer ring (5) extends into the solution by 20-50 mm.

5. The dustproof feeding device of claim 4, wherein:

the diameter of the observation cleaning hole (3) is 200 mm, and the observation cleaning hole (3) is sealed by bolts and rubber cushions.

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