CN211471526U

CN211471526U - Multistage dust removal system for high-carbon ferrochrome smelting process

Info

Publication number: CN211471526U
Application number: CN201921393524.6U
Authority: CN
Inventors: 贾瑞
Original assignee: Xinghe County Xintai Ferroalloy Co ltd
Current assignee: Xinghe County Xintai Ferroalloy Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-09-11
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a multistage dust pelletizing system for high-carbon ferrochrome smelting process, which relates to the technical field of high-carbon ferrochrome smelting, and comprises a multistage dust pelletizing component, wherein a box body of the multistage dust pelletizing component is divided into a coarse dust processing chamber and a fine dust processing chamber by a partition plate, wherein, the coarse dust processing chamber and the fine dust processing chamber are respectively and correspondingly provided with filter bags for filtering dust in smoke, thereby realizing the function of grading treatment, the efficiency is higher when the dust in the smoke is processed, and the whole dust pelletizing system can not run under an overload state, the coarse dust and the fine dust obtained after the treatment respectively fall into corresponding collecting bins, thereby facilitating the later-stage treatment of the dust, greatly improving the practical performance of the existing dust pelletizing system, leading the dust pelletizing system to be more suitable for the use of the metallurgical industry, and leading the smoke dust cooling component to pass through, can cool down the smoke and dust that has the temperature and handle, prevent to cause the damage to subsequent dust filtering component.

Description

Multistage dust removal system for high-carbon ferrochrome smelting process

Technical Field

The utility model relates to a high carbon ferrochrome smelts technical field, specifically is a multistage dust pelletizing system that is used for high carbon ferrochrome to smelt technology.

Background

Ferrochrome is the most important raw material for producing stainless steel, mainly apply to producing stainless steel, ball bearing steel, tool steel, nitriding steel, heat-resisting steel, quenched and tempered steel, carburizing steel and hydrogen-resisting steel, this is because the function of chromium in stainless steel is determined, determine the stainless steel attribute element only one, this is chromium, every stainless steel must contain a certain amount of chromium, high carbon ferrochrome is in the process of smelting, need realize with the help of the smelting furnace, the smelting furnace is in the metallurgical process, can produce a large amount of flue gases, contain a large amount of dusts in the flue gas, in order to reduce the destruction to the environment, need to handle the dust in this part of flue gases.

However, the smoke dust treatment system used in cooperation with the existing smelting furnace is complex in structure and single in function, and the generated smoke gas contains dust with different particle size degrees, and the existing smoke dust treatment system generally does not carry out classification treatment according to the particle size of the dust, so that the workload of the whole dust removal system is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a multistage dust pelletizing system for high carbon ferrochrome smelts technology has solved the flue gas, contains the dust that the particle diameter thickness degree is different, and current smoke and dust processing system does not carry out stage treatment according to the particle diameter of dust usually to lead to having improved whole dust pelletizing system's work load, in addition, the smoke and dust of following exhaust in the smelting furnace contains certain temperature, if directly let smoke and dust processing system handle, can cause smoke and dust processing system's the problem of losing certainly.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a multistage dust pelletizing system for high-carbon ferrochrome smelts technology, includes multistage dust removal subassembly, drainage fan, air-supply line, smoke and dust cooling subassembly and smoke and dust conveyer pipe, one side of multistage dust removal subassembly just bears the fixed drainage fan that is provided with in position department above the concrete foundation, the air inlet end of drainage fan is fixed to be concatenated an air-supply line, the fixed atomizing end that has connect smoke and dust cooling subassembly of outside district section of air-supply line, form the tandem structure of gas transportation through a smoke and dust conveyer pipe between the air inlet end of multistage dust removal subassembly and the end of giving vent to anger of drainage fan.

Preferably, multistage dust removal subassembly includes that fixed mounting bears the support at the equipment on concrete pile foundation loading end, the top fixed mounting that equipment bore the support has the dust removal box, the fixed flue gas import of having seted up in the top of dust removal box one side end face, the inside of dust removal box is provided with coarse dust respectively and filters cavity and fine dust and filters the cavity, and coarse dust filters and to realize separating through a baffle between the cavity with the fine dust.

Preferably, the inside top fixed mounting of coarse dust filtration cavity has the fine dust to lead the filter plate, the fine dust is led the filter plate and is the component of "L" font structure, the vertical face embedding that the filter plate was led to the fine dust is established in the inside of baffle, forms the intercommunication structure that coarse dust filtered cavity and fine dust filtered the cavity, the horizontal plane that the filter plate was led to the fine dust parallels with the top surface of dust removal box, the fixed first loading board that is provided with in the inside intermediate position of coarse dust filtration cavity, a plurality of coarse dust filter bags of inside fixedly connected with of first loading board, the bottom terminal surface of dust removal box and the corresponding position department fixed mounting of coarse dust filtration cavity have coarse dust to collect the storehouse.

Preferably, run through formula fixedly connected with flue gas outlet on the upper surface of dust removal box and the position corresponding with the fine dust filtration cavity, the upper surface of dust removal box and the top position department fixed mounting that is located the flue gas outlet have rain-proof frame, the bottom face of dust removal box corresponds coarse dust filtration cavity and fine dust filtration cavity's position department and has all fixedly seted up and lead the dirt mouth, the bottom of dust removal box corresponds the position fixed mounting that the fine dust filtered the cavity and has the fine dust collection bin, the dust outlet that the storehouse was collected to coarse dust and fine dust collection bin bottom has all concatenated the dust outlet valve.

Preferably, a dust blocking filter plate is fixedly connected to the position, corresponding to the gas inlet end of the flue gas outlet, of the top end inside the fine dust filtering chamber, a second bearing plate is movably connected to the middle position inside the fine dust filtering chamber, and a plurality of fine dust filter bags are fixedly connected to the inside of the second bearing plate.

Preferably, the smoke dust cooling assembly comprises a pipe sleeve fixedly sleeved outside the air inlet pipe, a plurality of atomizing spray heads distributed equidistantly are connected to one side face of the top of the pipe sleeve, atomizing ends of the atomizing spray heads penetrate through the inside of the pipe sleeve and extend to the inside of the air inlet pipe, liquid inlet ends of the atomizing spray heads are fixedly connected with liquid outlet ends of the hoses, and liquid inlet ends of the hoses are fixedly connected with liquid outlet ends of the flow dividing pipes.

Preferably, the smoke and dust cooling subassembly is still including placing in subaerial water tank, the inside top fixed mounting of water tank has a filter, the last fixed surface of water tank installs the inlet tube support, the top fixedly connected with inlet tube of inlet tube support, the upper surface of water tank and the one side position department fixed mounting who is located the inlet tube support have the water pump, the feed liquor end of water pump extends to the inside of water tank.

Preferably, the front face of the bottom of the water tank is provided with a drain pipe in a penetrating mode, the liquid outlet end of the drain pipe is sleeved with the control valve, and the liquid outlet end of the water pump and the liquid inlet end of the flow dividing pipe form a serial connection structure through a water conveying pipe.

Advantageous effects

The utility model provides a multistage dust pelletizing system that is used for high carbon ferrochrome to smelt technology. Compared with the prior art, the method has the following beneficial effects:

1. this a multistage dust pelletizing system for high carbon ferrochrome smelts technology, in the box of multistage dust pelletizing subassembly, separate for coarse dust processing cavity and fine dust processing cavity by a baffle, wherein, correspond respectively in coarse dust processing cavity and the fine dust processing cavity and install the filter bag that is used for filtering dust in the flue gas, the function of stage treatment has been realized, this kind of mode is when handling the dust in the flue gas, efficiency is higher, and let whole dust pelletizing system not go out to operate under overload's state, the coarse dust and the fine dust that obtain after the processing fall into respectively in the collection storehouse that corresponds, make things convenient for the processing in dust later stage, to a great extent has improved current dust pelletizing system's practicality, let dust pelletizing system be applicable to metallurgical industry's use more.

2. The multistage dust removal system for the high-carbon ferrochrome smelting process is characterized in that a smoke dust cooling assembly is sleeved outside an air inlet pipe, wherein the smoke dust cooling assembly comprises a pipe sleeve and a water tank, a plurality of atomizing spray heads distributed equidistantly are connected to one side surface of the top of the pipe sleeve, atomizing ends of the atomizing spray heads penetrate through the inside of the pipe sleeve and extend to the inside of a smoke dust conveying pipe, liquid inlet ends of hoses are fixedly connected with liquid outlet ends of the hoses, liquid inlet ends of the hoses are fixedly connected with liquid outlet ends of flow dividing pipes, a filter plate is fixedly installed at the top end of the inside of the water tank, a water inlet pipe support is fixedly installed on the upper surface of the water tank, a water inlet pipe is fixedly connected to the top end of the water inlet pipe support, a water pump is fixedly installed on the upper surface of the water tank and located on one side of the water inlet pipe support, the atomizing nozzle atomizes the cooling water into water molecules, and the water molecules are injected into the air inlet pipe, so that the atomized water molecules are combined with the flue gas with the temperature, and the cooling treatment is realized.

Drawings

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

FIG. 2 is a schematic structural view of the multi-stage dust removing assembly of the present invention;

FIG. 3 is a schematic structural view of the smoke dust cooling assembly of the present invention;

fig. 4 is a schematic view of the installation structure of the atomizer of the present invention.

In the figure: 1. a multi-stage dust removal assembly; 11. an equipment carrying bracket; 12. a dust removal box body; 13. a flue gas inlet; 14. a coarse dust collection bin; 15. a dust discharge valve; 16. a dust guide port; 17. a flue gas outlet; 18. a rain-proof frame; 19. a dust-proof filter plate; 110. a partition plate; 111. fine dust guide filter plates; 112. a first bearing plate; 113. A coarse dust filter bag; 114. a second carrier plate; 115. a fine dust filter bag; 116. a fine dust collection bin; 2. a drainage fan; 3. an air inlet pipe; 4. a smoke dust cooling component; 41. a water tank; 42. a filter plate; 43. a water inlet pipe bracket; 44. a water inlet pipe; 45. a blow-off pipe; 46. a water pump; 47. a water delivery pipe; 48. a shunt tube; 49. A hose; 410. an atomizing spray head; 411. pipe sleeve; 5. a smoke dust conveying pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a multistage dust pelletizing system for high carbon ferrochrome smelts technology, including multistage dust removal subassembly 1, drainage fan 2, air-supply line 3, smoke and dust cooling module 4 and smoke and dust conveyer pipe 5, one side of multistage dust removal subassembly 1 just bears the fixed drainage fan 2 that is provided with in position department of concrete foundation top, the fixed air-supply line 3 that has concatenated of air-supply line 2's inlet end, the fixed atomizing end that has cup jointed smoke and dust cooling module 4 of outside district section of air-supply line 3, form gas conveying's tandem structure through a smoke and dust conveyer pipe 5 between the inlet end of multistage dust removal subassembly 1 and drainage fan 2's the end of giving vent to anger.

Referring to fig. 2, the multistage dust removing assembly 1 includes an apparatus supporting bracket 11 fixedly installed on a concrete pile bearing surface, a dust removing box body 12 is fixedly installed above the apparatus supporting bracket 11, a flue gas inlet 13 is fixedly installed at the top of one side end surface of the dust removing box body 12, a coarse dust filtering chamber and a fine dust filtering chamber are respectively arranged inside the dust removing box body 12, the coarse dust filtering chamber and the fine dust filtering chamber are separated by a partition plate 110, a fine dust guiding filter plate 111 is fixedly installed at the top end inside the coarse dust filtering chamber, the fine dust guiding filter plate 111 is a member of an "L" shape structure, a vertical surface of the fine dust guiding filter plate 111 is embedded inside the partition plate 110 to form a communicating structure of the coarse dust filtering chamber and the fine dust filtering chamber, a horizontal surface of the fine dust guiding filter plate 111 is parallel to the top surface of the dust removing box body 12, a first supporting plate 112 is fixedly installed at a middle position inside the coarse, a plurality of coarse dust filter bags 113 are fixedly connected inside the first bearing plate 112, a coarse dust collection bin 14 is fixedly installed at a position on the bottom end surface of the dust removal box body 12 corresponding to the coarse dust filtering chamber, a flue gas outlet 17 is fixedly connected on the upper surface of the dust removal box body 12 corresponding to the fine dust filtering chamber in a penetrating manner, a rainproof frame 18 is fixedly installed at a position on the upper surface of the dust removal box body 12 and above the flue gas outlet 17, dust guide ports 16 are fixedly arranged at positions on the bottom end surface of the dust removal box body 12 corresponding to the coarse dust filtering chamber and the fine dust filtering chamber, a fine dust collection bin 116 is fixedly installed at a position on the bottom of the dust removal box body 12 corresponding to the fine dust filtering chamber, dust discharge valves 15 are connected in series at the dust discharge ports at the bottoms of the coarse dust collection bin 14 and the fine dust collection bin 116, a dust blocking filter plate 19 is fixedly connected at a position on the top end inside the fine dust filtering chamber and corresponding to the gas inlet end, the middle position inside the fine dust filtering chamber is movably connected with a second bearing plate 114, and a plurality of fine dust filtering bags 115 are fixedly connected inside the second bearing plate 114.

Referring to fig. 3-4, the smoke and dust cooling assembly 4 includes a pipe sleeve 411 fixedly sleeved outside the air inlet pipe, a side surface of the top of the pipe sleeve 411 is connected with a plurality of atomizing nozzles 410 distributed equidistantly, an atomizing end of the atomizing nozzle 410 penetrates through the inside of the pipe sleeve 411 and extends to the inside of the air inlet pipe 3, a liquid inlet end of the atomizing nozzle 410 is fixedly connected with a liquid outlet end of a hose 49, a liquid inlet end of the hose 49 is fixedly connected with a liquid outlet end of a shunt pipe 48, the smoke and dust cooling assembly 4 further includes a water tank 41 placed on the ground, a filter plate 42 is fixedly installed at the top end inside the water tank 41, a water inlet pipe bracket 43 is fixedly installed on the upper surface of the water tank 41, a water inlet pipe 44 is fixedly connected to the top end of the water inlet pipe bracket 43, a water pump 46 is fixedly installed on the upper, a drainage pipe 45 is arranged at the front face of the bottom of the water tank 41 in a penetrating manner, a control valve is sleeved at the liquid outlet end of the drainage pipe 45, and a series connection structure is formed between the liquid outlet end of the water pump 46 and the liquid inlet end of the diversion pipe 48 through a water conveying pipe 47.

When in use, firstly, the air inlet end of the air inlet pipe 3 is connected in series with the air outlet end of the metal smelting furnace, after the air inlet end and the air outlet end are connected in series, the drainage fan 2 is opened to generate suction, the flue gas generated in the metal smelting furnace is conveyed to the interior of the dedusting box body 12 through the air inlet pipe 3 and the smoke dust conveying pipe 5, in the conveying process, the water pump 46 is started, the cooling water in the water tank 41 is conveyed to the interior of each atomizing nozzle 410 by the water pump 47, the shunt pipe 48 and the hose 49 in sequence, then the cooling water is changed into atomized water molecules through the atomizing nozzle 410, so that the cooling water can be fully contacted with the flue gas with temperature, the temperature of the flue gas is reduced, the damage to the subsequent dedusting treatment is prevented, after the temperature of the flue gas is reduced, the flue gas is conveyed to the interior of the dedusting box body 12 through the smoke dust conveying, in the entering process, the coarse dust and the fine dust in the flue gas are separated by the fine dust guide filter plate 111, the flue gas containing the fine dust enters the fine dust processing chamber, then the coarse dust and the fine dust fall into the corresponding collecting bins after being filtered by the corresponding filter bags respectively, and the filtered flue gas is discharged through the flue gas outlet 17, so that the whole multi-stage and graded dust removal engineering is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistage dust pelletizing system for high carbon ferrochrome smelts technology, includes multistage dust removal subassembly (1), drainage fan (2), air-supply line (3), smoke and dust cooling subassembly (4) and smoke and dust conveyer pipe (5), its characterized in that: one side of multistage dust removal subassembly (1) just bears the fixed drainage fan (2) that is provided with in position department above the concrete foundation, the fixed air-supply line (3) that has concatenated of air inlet end of drainage fan (2), the fixed atomizing end that has cup jointed smoke and dust cooling subassembly (4) in the outside district section of air-supply line (3), form gas transport's tandem structure through a smoke and dust conveyer pipe (5) between the end of giving vent to anger of the inlet end of multistage dust removal subassembly (1) and drainage fan (2).

2. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 1, wherein: multistage dust removal subassembly (1) includes that fixed mounting bears support (11) at the equipment on the concrete pile foundation loading end, the top fixed mounting that equipment bore support (11) has dust removal box (12), flue gas inlet (13) have been fixed to have seted up at the top of dust removal box (12) a side end face, the inside of dust removal box (12) is provided with coarse dust respectively and filters cavity and fine dust and filters the cavity, and coarse dust filters and realizes separating through a baffle (110) between cavity and the fine dust filtration cavity.

3. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 2, wherein: coarse dust filters the inside top fixed mounting of cavity and leads filter plate (111) with fine dust, fine dust leads the component that filter plate (111) is "L" font structure, fine dust leads the vertical face embedding of filter plate (111) to establish in the inside of baffle (110), forms coarse dust and filters the intercommunication structure of cavity and fine dust, fine dust leads the horizontal plane of filter plate (111) and the top surface of dust removal box (12) and parallels, the fixed first loading board (112) that is provided with of the inside intermediate position of coarse dust filtration cavity, a plurality of coarse dust filter bags (113) of inside fixedly connected with of first loading board (112), the bottom terminal surface of dust removal box (12) just filters the corresponding position department fixed mounting of cavity with coarse dust and has coarse dust collection bin (14).

4. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 3, wherein: the upper surface of dust removal box (12) and with the fine dust filter on the corresponding position of cavity through type fixedly connected with flue gas outlet (17), the upper surface of dust removal box (12) and the top position department fixed mounting that is located flue gas outlet (17) have rain-proof frame (18), the bottom face of dust removal box (12) corresponds coarse dust and filters the position department of cavity and fine dust and all fixes and has seted up and lead dirt mouth (16), the bottom of dust removal box (12) corresponds the position fixed mounting that the fine dust filtered the cavity and has fine dust to collect storehouse (116), the dust outlet that coarse dust collected storehouse (14) and fine dust collected storehouse (116) bottom has all concatenated dust exhaust valve (15).

5. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 4, wherein: the dust filter comprises a fine dust filtering chamber, a dust blocking filter plate (19) is fixedly connected to the position, corresponding to the air inlet end of a flue gas outlet (17), of the top end of the interior of the fine dust filtering chamber, a second bearing plate (114) is movably connected to the middle position of the interior of the fine dust filtering chamber, and a plurality of fine dust filter bags (115) are fixedly connected to the interior of the second bearing plate (114).

6. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 1, wherein: smoke and dust cooling subassembly (4) are including fixed cup joint pipe box (411) in air-supply line (3) outside, a side at pipe box (411) top is connected with atomizer (410) of a plurality of equidistance distributions, the inside of pipe box (411) is run through to the atomizing end of atomizer (410) to extend to the inside of air-supply line (3), the liquid outlet end of the liquid inlet end fixedly connected with hose (49) of atomizer (410), the liquid outlet end of the liquid inlet end fixedly connected with shunt tubes (48) of hose (49).

7. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 6, wherein: smoke and dust cooling subassembly (4) are still including placing in subaerial water tank (41), the inside top fixed mounting of water tank (41) has a filter (42), the last fixed surface of water tank (41) installs inlet tube support (43), the top fixedly connected with inlet tube (44) of inlet tube support (43), the upper surface of water tank (41) and the one side position department fixed mounting that is located inlet tube support (43) have water pump (46), the feed liquor end of water pump (46) extends to the inside of water tank (41).

8. The multi-stage dust removal system for the high-carbon ferrochrome smelting process according to claim 7, wherein: the bottom of the water tank (41) is provided with a drainage pipe (45) in a penetrating mode in the front face, a control valve is sleeved at the liquid outlet end of the drainage pipe (45), and a series connection structure is formed between the liquid outlet end of the water pump (46) and the liquid inlet end of the flow dividing pipe (48) through a water conveying pipe (47).