CN210974745U

CN210974745U - Auxiliary device for blast furnace hot blast stove

Info

Publication number: CN210974745U
Application number: CN201922172678.9U
Authority: CN
Inventors: 曾兵; 林勇; 刘孝斌; 周明源; 徐显天; 周记辉
Original assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Current assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-10
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses an auxiliary device for blast furnace hot-blast stove, including counter weight seat, heating furnace, current-limiting mechanism, cooling body and circulation mechanism, the fixed welding in one side at counter weight seat top and the bottom of heating furnace, first one and the lower half of heating furnace one side are dug respectively and are equipped with delivery port and current-limiting mouth, the multiunit spacing groove has been seted up to the inside one side of heating furnace, and the spacing inslot is equipped with current-limiting mechanism, the internally mounted of heating furnace has the checker brick, the grate is installed to the bottom of checker brick, the first one of the inside of heating furnace installs the combustor, the dust remover is installed to one side that the heating furnace was kept away from at counter weight seat top, be equipped with cooling body between heating furnace and the dust remover, cooling body's bottom is connected with circulation body's top. This blast furnace is auxiliary device for hot-blast stove can adjust as required cold wind rate of delivery to make cold wind evenly carry, can carry out the preliminary treatment to the high temperature waste gas that produces simultaneously.

Description

Auxiliary device for blast furnace hot blast stove

Technical Field

The utility model belongs to the technical field of the blast furnace, concretely relates to blast furnace is auxiliary device for hot-blast stove.

Background

The blast furnace hot blast stove is one of main supporting equipment of iron works blast furnace, generally a blast furnace is furnished with 3 ~ 4 hot-blast stoves, and the effect of hot-blast stove is for the blast furnace is continuous provides the high temperature hot-blast of more than 1000 degrees. Hot blast stoves are thermal equipment integrating combustion and heat transfer processes, which need to provide hot air flow for the process, and generally have two major types, namely heat accumulating type hot blast stoves working intermittently and continuous heat exchange type hot blast stoves. Hot blast stoves are widely used in many fields of industrial production, and hot blast stoves with different purposes and different structures are derived due to different technological requirements, different types of fuels and different hot blast media. At the present stage, in the use process of the hot blast stove, cold air enters into checker bricks of the hot blast stove and is unevenly distributed and unstable in speed, and meanwhile, after the hot blast stove is used, the generated high-temperature waste gas cannot be well treated.

Therefore, in order to meet the current situation, it is urgently needed to design and produce an auxiliary device for a blast furnace hot blast stove so as to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary device for blast furnace hot blast stove to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an auxiliary device for a blast furnace hot blast stove comprises a counterweight seat, a heating furnace, a flow limiting mechanism, a cooling mechanism and a circulating mechanism, wherein one side of the top of the counterweight seat is fixedly welded with the bottom of the heating furnace, the upper half part and the lower half part of one side of the heating furnace are respectively dug with a conveying port and a flow limiting port, one side of the interior of the heating furnace, which is far away from the flow limiting port, is provided with a plurality of groups of limiting grooves distributed equidistantly, the limiting grooves are internally provided with the flow limiting mechanism arranged in the flow limiting port, the middle part of the interior of the heating furnace is provided with adaptive checker bricks, the bottom of the checker bricks is provided with a grate arranged above the flow limiting mechanism, the upper half part of the interior of the heating furnace is provided with a burner, the burner is connected with a gas pipe which penetrates through the back of the heating furnace and is communicated with a gas outlet of the blast furnace, one side of the, the two ends of the cooling mechanism are respectively communicated with the conveying port and the dust inlet of the dust remover, and the bottom of the cooling mechanism is connected with the top of the circulating mechanism arranged at the top of the counterweight seat.

Preferably, current-limiting mechanism includes current-limiting seat, current-limiting plate and current-limiting post, the both sides of current-limiting seat fixed weld respectively have with the current-limiting plate of current-limiting mouth looks adaptation and the current-limiting post of multiunit and spacing groove looks adaptation, the spacing hole that the multiunit is the equidistance and distributes is all bored to first half and the lower half of current-limiting plate, spacing downthehole bolt of being connected with the heating furnace that is equipped with, the limited chute is seted up at the center of current-limiting seat, and the bottom of current-limiting chute is bored and is equipped with the current-limiting hole that the multiunit is ring array and distributes, and the dog.

Preferably, cooling body includes cooler bin and fan, the inside of cooler bin is installed the cross-section through the clamp and is snakelike cooling tube, the side-mounting of cooler bin has the fan, all install the conveyer pipe that communicates with the delivery port through the bolt in the air inlet of fan, the air outlet of fan passes through bolt and cooling tube intercommunication, and the cooling tube is kept away from the one end of fan and the dust inlet intercommunication of dust remover.

Preferably, circulation mechanism includes liquid reserve tank and water pump, the top and the bottom of liquid reserve tank respectively with the bottom of cooling box of cooling mechanism and the top fixed weld of counter weight seat, one side fixed weld that the liquid reserve tank top is close to the cooling box has the water pump, the water inlet of water pump and delivery port all install the inlet tube with the liquid reserve tank intercommunication and with the outlet pipe of cooling box intercommunication through the bolt, the one end that the water pump was kept away from to the inlet tube is arranged in below the liquid level of the inside water liquid that holds of liquid reserve tank, install the back flow with the cooling box intercommunication through the bolt in digging the back flow mouth of establishing at the liquid reserve tank top.

Preferably, one side of the heating furnace, which is far away from the current-limiting mechanism, is provided with a hot air outlet and a cold air inlet, a hot air pipe connected with an external blast furnace and a cold air pipe connected with an external air inlet device are mounted in the hot air outlet and the cold air inlet through bolts, and control valves of the adaptation are mounted on the conveying pipe of the cooling mechanism, the water inlet pipe of the circulating mechanism, the water outlet pipe of the circulating mechanism, the return pipe of the circulating mechanism, the gas pipe of the circulating mechanism and the cold air pipe of the circulating.

The utility model discloses a technological effect and advantage: the auxiliary device for the blast furnace hot blast stove has the advantages that cold air is blocked by the installed flow limiting seat and is uniformly conveyed through the flow limiting hole, meanwhile, the proper number of the stop blocks are selected according to needs, and the stop blocks are joggled with the flow limiting hole, so that the conveying speed of the cold air is adjusted according to the needs; the waste gas generated in the use process is conveyed into the cooling pipe through the conveying pipe by the operation of the fan, the cooling pipe is cooled by water liquid in the cooling box, so that the possibility of damage to the dust remover caused by overhigh temperature of the waste gas is reduced, the possibility of temperature rise of a working environment caused by heat dissipation is reduced, high-temperature waste gas is subjected to cooling pretreatment, and meanwhile, the contact area between the waste gas and the water liquid is increased by arranging the section of the cooling pipe into a snake shape, so that the cooling rate is increased; through the work of water pump, make the inside water liquid that holds of liquid reserve tank carry to the cooler bin in by inlet tube and outlet pipe, carry out cooling treatment to the cooling tube, the water liquid after the simultaneous processing passes through the back flow and flows back to the liquid reserve tank in to recycling water liquid, resources are saved, this blast furnace is auxiliary device for hot-blast stove, can adjust according to the cold wind rate of delivery that needs, and make cold wind evenly carry, can carry out the preliminary treatment to the high temperature waste gas that produces simultaneously.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the current limiting mechanism of the present invention.

In the figure: 1 counterweight seat, 2 heating furnaces, 3 flow-limiting mechanisms, 4 cooling mechanisms, 5 circulating mechanisms, 6 checker bricks, 7 furnace grates, 8 burners, 9 dust collectors, 10 flow-limiting seats, 11 flow-limiting plates, 12 flow-limiting columns, 13 cooling tanks, 14 fans, 15 liquid storage tanks and 16 water pumps.

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.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a as shown in fig. 1-3 a blast furnace hot-blast stove auxiliary device, including counter weight seat 1, heating furnace 2, current-limiting mechanism 3, cooling body 4 and circulating mechanism 5, one side at counter weight seat 1 top and the fixed welding in bottom of heating furnace 2, the first half and the lower half of heating furnace 2 one side dig respectively and are equipped with delivery port and restricted flow mouth, the multiunit is the spacing groove that distributes equidistantly seted up to the inside one side of keeping away from restricted flow mouth of heating furnace 2, be equipped with in the spacing groove and arrange current-limiting mechanism 3 in the current-limiting mouth, the checker brick 6 of adaptation is installed to the inside mid-mounting of heating furnace 2, and checker brick 6 can select L Z-75 type checker brick produced for zheng cheng xinlong refractory material limited company, grate 7 of arranging current-limiting mechanism 3 top in is installed to the bottom of checker brick 6, combustor 8 is installed to the inside portion of heating furnace 2, and combustor 8 can select to be temminnox-G L type combustor that cheng tai energy limited company produced for the dust removal processing of the dust removal mechanism 2, combustor 8 and dust removal processing mechanism can be connected through the dust removal and dust removal mechanism 2, the dust removal processing furnace can be carried out the dust removal by the dust removal mechanism 2, dust removal processing stove 2, dust removal mechanism can be connected in the dust removal mechanism 2, dust removal processing stove 2, dust removal mechanism can be connected in the dust removal mechanism, dust removal mechanism 2, dust removal mechanism, dust removal.

Specifically, the flow limiting mechanism 3 comprises a flow limiting seat 10, a flow limiting plate 11 and a flow limiting column 12, wherein the flow limiting plate 11 matched with a flow limiting opening and a plurality of groups of flow limiting columns 12 matched with limiting grooves are respectively fixedly welded on two sides of the flow limiting seat 10, a plurality of groups of limiting holes distributed equidistantly are drilled in the upper half part and the lower half part of the flow limiting plate 11, bolts connected with the heating furnace 2 are arranged in the limiting holes, a limiting groove is arranged in the center of the flow limiting seat 10, a plurality of groups of flow limiting holes distributed in an annular array are drilled in the bottom of the flow limiting groove, adaptive stop blocks are jogged in the flow limiting holes, the flow limiting seat 10 is taken out in an air supply working state, an appropriate number of stop blocks are selected according to needs, the stop blocks are jogged with the flow limiting holes, after the joggling is completed, the flow limiting columns 12 are connected with the limiting grooves, the flow limiting plate 11 is connected with the heating furnace through the limiting, and the cold air is uniformly conveyed through the flow limiting holes, so that the cold air conveying speed can be adjusted according to the requirement.

Specifically, the cooling mechanism 4 comprises a cooling box 13 and a fan 14, a cooling pipe with a serpentine section is mounted in the cooling box 13 through a hoop, the serpentine section of the cooling pipe is designed to increase the contact area with water liquid, so as to improve the cooling rate, the fan 14 is mounted on the side surface of the cooling box 13, the fan 14 can be selected from DF type high temperature resistant blowers produced by china cheng he electromechanical limited, a delivery pipe communicated with the delivery port is mounted in the air inlet of the fan 14 through a bolt, the air outlet of the fan 14 is communicated with the cooling pipe through a bolt, one end of the cooling pipe far away from the fan 14 is communicated with a dust inlet of the dust remover 9, waste gas generated in the using process is delivered into the cooling pipe through the delivery pipe through the work of the fan 14, the cooling pipe is cooled through the water liquid in the cooling box 13, so as to reduce the possibility that the waste gas damages the dust remover due to overhigh temperature, and the possibility of temperature rise of the working environment caused by heat dissipation is reduced, and the high-temperature waste gas is subjected to cooling pretreatment.

It is specific, circulation mechanism 5 includes liquid reserve tank 15 and water pump 16, the top and the bottom of liquid reserve tank 15 respectively with the bottom of cooling box 13 of cooling body 4 and the fixed welding in top of counter weight seat 1, one side fixed welding that the liquid reserve tank 15 top is close to cooling box 13 has water pump 16, and water pump 16 can select 80HY L-18 type water pump that Shanghai ' an Huai pump valve limited production, water pump 16's water inlet and delivery port all install the inlet tube with liquid reserve tank 15 intercommunication and with the outlet pipe of cooling box 13 intercommunication through the bolt, the inlet tube is kept away from the one end of water pump 16 and is arranged in below the liquid level of the inside water liquid that holds of liquid reserve tank 15, install the back flow that communicates with cooling box 13 through the bolt in the back flow that establishes at liquid reserve tank 15 top, through water pump 16's work, make the inside water liquid that holds of liquid reserve tank 15 carry to cooling box 13 in by inlet tube and outlet pipe, carry out cooling treatment to the cooling tube, water liquid after handling is through flowing back to the back flow 15 to carry out circulation use.

Specifically, hot air outlet and cold air inlet have been seted up to one side that current-limiting mechanism 3 was kept away from to heating furnace 2, all install the cold-blast pipe that the hot-blast main of being connected with outside blast furnace and the air inlet equipment of outside are connected through the bolt in hot air outlet and the cold air inlet, all install the control valve of adaptation on the conveyer pipe of cooling mechanism 4, the inlet tube of circulating mechanism 5, outlet pipe and back flow, gas pipe, hot-blast main and the cold-blast pipe, combustor 8, dust remover 9, fan 14 and water pump 16 all have the switch and with outside drive power supply electric connection, the accessible installation P L C controller is regulated and control, and P L C control can be selected to siemens S7-300 type P L C controller.

Specifically, the auxiliary device for the blast furnace hot blast stove is characterized in that in a combustion working state, coal gas generated in the production process of an external blast furnace is conveyed into a combustor 8 through a coal gas pipe, the coal gas is combusted through the work of the combustor 8, heat generated by combustion is absorbed and stored by a checker brick 6, after the treatment is finished, a fan 14 is turned on, waste gas generated in the use process is conveyed into a cooling pipe through a conveying pipe through the work of the fan 14, a water pump 16 is turned on at the same time, water liquid contained in a liquid storage tank 15 is conveyed into a cooling tank 13 through a water inlet pipe and a water outlet pipe through the work of the water pump 16, the cooling pipe is cooled through the water liquid in the cooling tank 13, so that the possibility that the dust remover is damaged due to overhigh temperature of the waste gas is reduced, the possibility that the temperature of a working environment rises due to the heat dissipation is reduced, and the high-temperature waste gas is cooled and pretreated, the treated water liquid flows back to the liquid storage tank 15 through the return pipe, thereby recycling the water liquid, saving resources, conveying the treated waste gas to the dust remover 9 for dust removal treatment, discharging the waste gas after the treatment is qualified, in the working state of air supply, the current-limiting seat 10 is taken out, a proper number of stop blocks are selected according to the requirement, the stop block is joggled with the flow limiting hole, after the joggling is finished, the flow limiting column 12 is connected with the limiting groove, the flow limiting plate 11 is connected with the heating furnace through a limiting bolt, the cold air is blocked by the installed flow limiting seat 10 and is evenly conveyed by the flow limiting hole, thereby adjust according to the cold wind rate of delivery that needs, adjust the back of accomplishing, outside air inlet unit carries cold wind to the inside of heating furnace 2 through the cold-blast main, and cold wind passes through hot-blast main and carries to the blast furnace after checker brick 6 heats, continuously provides the heat for the blast furnace.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a blast furnace is auxiliary device for hot-blast stove, includes counter weight seat (1), heating furnace (2), current-limiting mechanism (3), cooling body (4) and circulation mechanism (5), its characterized in that: one side of the top of the counterweight seat (1) is fixedly welded with the bottom of the heating furnace (2), the upper half part and the lower half part of one side of the heating furnace (2) are respectively dug to be provided with a conveying port and a flow limiting port, one side of the interior of the heating furnace (2) far away from the flow limiting port is provided with a plurality of groups of limiting grooves which are distributed equidistantly, limiting mechanisms (3) arranged in the flow limiting ports are arranged in the limiting grooves, the middle part of the interior of the heating furnace (2) is provided with adaptive checker bricks (6), the bottom of the checker bricks (6) is provided with a grate (7) arranged above the flow limiting mechanisms (3), the upper half part of the interior of the heating furnace (2) is provided with a burner (8), the burner (8) is connected with a gas pipe which penetrates through the back of the heating furnace (2) and is communicated with a gas outlet of the blast furnace, one side of the top of the, and a cooling mechanism (4) is arranged between the heating furnace (2) and the dust remover (9), two ends of the cooling mechanism (4) are respectively communicated with the conveying port and the dust inlet of the dust remover (9), and the bottom of the cooling mechanism (4) is connected with the top of the circulating mechanism (5) arranged at the top of the counterweight seat (1).

2. The auxiliary device for a blast furnace stove according to claim 1, characterized in that: current-limiting mechanism (3) are including current-limiting seat (10), current-limiting plate (11) and current-limiting post (12), the both sides of current-limiting seat (10) fixed welding respectively have current-limiting plate (11) and current-limiting post (12) of multiunit and spacing groove looks adaptation with the restriction mouth looks adaptation, the first half and the lower half of current-limiting plate (11) all bore and are equipped with the spacing hole that the multiunit is the equidistance and distributes, are equipped with the bolt of being connected with heating furnace (2) in the spacing downthehole, the limited chute is seted up at the center of current-limiting seat (10), and the bottom in the limited chute is bored and is equipped with the current-limiting hole that the multiunit is the annular array and distributes, and.

3. The auxiliary device for a blast furnace stove according to claim 1, characterized in that: cooling body (4) include cooler bin (13) and fan (14), the inside of cooler bin (13) is installed the cross-section through the clamp and is snakelike cooling tube, the side-mounting of cooler bin (13) has fan (14), all install the conveyer pipe that communicates with the delivery port through the bolt in the air inlet of fan (14), the air outlet of fan (14) passes through bolt and cooling tube intercommunication, and the one end that fan (14) were kept away from to the cooling tube communicates with the dust inlet of dust remover (9).

4. The auxiliary device for a blast furnace stove according to claim 1, characterized in that: circulation mechanism (5) include liquid reserve tank (15) and water pump (16), the top and the bottom of liquid reserve tank (15) respectively with the bottom of cooler bin (13) of cooling body (4) and the top fixed weld of counter weight seat (1), one side fixed weld that liquid reserve tank (15) top is close to cooler bin (13) has water pump (16), the water inlet and the delivery port of water pump (16) all install the inlet tube with liquid reserve tank (15) intercommunication and with the outlet pipe of cooler bin (13) intercommunication through the bolt, the one end that water pump (16) were kept away from to the inlet tube is arranged in below the liquid level of the inside water liquid that holds of liquid reserve tank (15), install the back flow with cooler bin (13) intercommunication through the bolt in digging the back flow mouth of establishing at liquid reserve tank (15) top.

5. The auxiliary device for a blast furnace stove according to claim 1, characterized in that: one side of the heating furnace (2) far away from the current limiting mechanism (3) is provided with a hot air outlet and a cold air inlet, a hot air pipe connected with an external blast furnace and a cold air pipe connected with an external air inlet device are mounted in the hot air outlet and the cold air inlet through bolts, and control valves of the adaptation are mounted on a conveying pipe of the cooling mechanism (4), an inlet pipe of the circulating mechanism (5), an outlet pipe of the circulating mechanism and the cold air pipe.