CN217312438U - Blast furnace gas purification and dehydration device - Google Patents

Abstract

The application provides a blast furnace gas purification and dehydration device, and belongs to the technical field of blast furnace gas purification. The device includes blast furnace body and dust removal mechanism, blast furnace body top is provided with the blast pipe, just be located on the blast pipe the filter screen both sides are provided with first check valve and second check valve respectively, dust removal mechanism includes electric putter, elastic component, the pump body, air exhauster, bag collector, whirl dehydrator and collecting box, the electric putter output shaft runs through the blast pipe is connected the elastic component, elastic component one end be provided with the brush that the filter screen contacted, the pump body with blast pipe top intercommunication, air exhauster one end through the exhaust column with blast pipe bottom intercommunication, the air exhauster other end is provided with the dust collection box, the blast pipe bag collector the whirl dehydrator with the collecting box communicates in proper order, and the device is convenient for clean the inside filter screen of blast pipe.

Description

Blast furnace gas purification and dehydration device

Technical Field

The application relates to the technical field of blast furnace gas purification, in particular to a blast furnace gas purification and dehydration device.

Background

The gas from the blast furnace generally contains combustible gases such as carbon monoxide, hydrogen and methane, and the calorific values of the combustible gases can be reused as fuels for hot blast stoves and boilers. However, dust is easily mixed in the airflow, and the pipeline is easily blocked. The prior device adopts the filter screen to intercept dust in the coal gas, but the filter screen is used for a long time, a large amount of dust is easily attached to one side of the filter screen, if the dust is not removed in time, the blockage of a pipeline is easily caused, and the effect of purifying and dehydrating the coal gas is further influenced. The method mostly is mostly dismantled the filter screen and washs in the past, and the filter screen has washed and still need reinstallation, and is comparatively loaded down with trivial details, if not dismantle the filter screen and wash, the dust that drops on the filter screen is not convenient for collect.

How to invent a blast furnace gas purification and dehydration device to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to make up for the deficiencies, the application provides a blast furnace gas purification and dehydration device, aiming at improving the problem of poor dust removal effect on one side of a filter screen.

The embodiment of the application provides a blast furnace gas purification dewatering device, including blast furnace body and dust removal mechanism, blast furnace body top is provided with the blast pipe, the slope is provided with the filter screen in the blast pipe, just be located on the blast pipe the filter screen both sides are provided with first check valve and second check valve respectively, dust removal mechanism includes electric putter, elastic component, the pump body, air exhauster, bag collector, whirl dehydrator and collecting box, electric putter locates the blast pipe top, the electric putter output shaft runs through the blast pipe is connected the elastic component, elastic component one end be provided with the brush that the filter screen contacted, the pump body with blast pipe top intercommunication, air exhauster one end through the exhaust column with blast pipe bottom intercommunication, the other end is provided with the dust collection box, the blast pipe bag collector, the dust collection box, The cyclone dehydrator is communicated with the collecting box in sequence.

In the implementation process, the first one-way valve and the second one-way valve are closed, the electric push rod is started, the output shaft of the electric push rod drives the brush at one end of the elastic part to move downwards, the filter screen is obliquely arranged, the elastic part is changed from a compression state to an extension state in the process that the brush moves from top to bottom, the brush is enabled to be always in contact with the filter screen and enable dust on the filter screen to fall off, an included angle between one side of the filter screen close to the first one-way valve and the inner bottom of the exhaust pipe is smaller than 90 degrees, dust is enabled to fall off, the pump body and the exhaust fan are started simultaneously, gas or liquid output by the pump body can only penetrate through the filter screen and enter the exhaust pipe due to the fact that the first one-way valve and the second one-way valve are closed, the dust enters the dust collection box through the suction force of the exhaust fan to complete collection, then the first one-way valve and the second one-way valve are opened, and the coal gas exhausted by the blast furnace body enters the bag type dust collector, the bag type dust collector further removes dust of the coal gas, the three-stage full dry purification process of the bag type dust collector can avoid the generation of washing wastewater, the pollution to a water system is eliminated, then the coal gas enters the cyclone dehydrator to complete the dehydration process, and the dehydrated coal gas enters the collection box to complete the collection.

In a specific implementation scheme, a sealing ring is arranged between the output shaft of the electric push rod and the exhaust pipe, and the inner wall of the sealing ring is movably connected with the outer wall of the output shaft of the electric push rod.

In the implementation process, the sealing ring can improve the sealing property between the output shaft of the electric push rod and the exhaust pipe, so that the gas introduced into the pump body is not easy to flow out through a gap between the output shaft of the electric push rod and the exhaust pipe.

In a specific embodiment, the elastic member includes a sleeve, an inner rod and a spring, the sleeve is slidably sleeved on the inner rod, one end of the spring is fixedly connected with the inner wall of the sleeve, and the other end of the spring is fixedly connected with the inner rod.

In the implementation process, the mode of sleeving the inner rod in a sliding manner through the sleeve is convenient for enhancing the stability of the elastic part during transverse stretching, so that the brush is in contact with the filter screen.

In a specific embodiment, the same mounting seat is fixed at the bottom of the air exhauster and the bottom of the dust collection box, and one end of the mounting seat is welded with the blast furnace body.

In the implementation process, the mounting seat supports the exhaust fan and the dust collection box, and the vibration degree of the exhaust fan during working is reduced to a certain extent.

In a specific embodiment, the top of the exhaust pipe is bucket-shaped, an activated carbon plate is arranged inside the dust collection box, and the activated carbon plate is provided with a plurality of activated carbon plates which are uniformly distributed at the bottom of the inner wall of the dust collection box.

In the implementation process, the exhaust pipe with the hopper-shaped design at the top is convenient for absorbing more dust, and the activated carbon plate has adsorbability and can play a better role in storing the dust in the dust box.

In a specific embodiment, the bottoms of the activated carbon plates are connected with the dust collection box through bolts, the front end surface of the dust collection box is hinged with a box door, and the box door is provided with an observation window.

In the implementation process, the bolt realizes the movable installation mode between the activated carbon plate and the dust collection box, the dust inside the dust collection box can be observed through the observation window, and if more dust is on the surface of the activated carbon plate, the box door can be opened to replace the activated carbon plate so as to clear the dust in the dust collection box.

In a specific embodiment, a timing switch is arranged at the top of the exhaust pipe, and the timing switch is electrically connected with the electric push rod.

In the implementation process, the timing switch enables the electric push rod to be started at a certain interval and closed after being started, so that a worker does not need to stay beside the electric push rod for a long time, and manpower is saved.

In a specific embodiment, the pump body can be set up to air pump or water pump, the pump body pass through the pipe with the blast pipe intercommunication, inside heater strip and the temperature sensor of being provided with of pipe, the blast pipe top is provided with the controller, the controller respectively with the heater strip with temperature sensor electric connection.

In the above-mentioned realization in-process, when the pump body is the water pump, can pass through the water pump with cleaning solution or running water and annotate the blast pipe, but liquid passes through starting control ware before the pipe for the heater strip heating, the dust on the filter screen is changeed to the liquid through the heating, and temperature in the temperature sensor detectable pipe, if the high temperature, the signal that temperature sensor sent is received to the controller, and then closes the heater strip.

In a particular embodiment, the heating wires are symmetrically arranged in two inside the conduit and are of meander design.

In the implementation process, the heating wire designed by circuitous bending is longer in length, so that the temperature inside the conduit can be rapidly increased.

In a specific embodiment, a storage battery is arranged at the top of the exhaust pipe, and the storage battery is electrically connected with the controller.

In the implementation process, the storage battery can supply power to the controller so as to increase the endurance time of the controller.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a blast furnace gas purification and dehydration apparatus provided in an embodiment of the present application;

FIG. 2 is a schematic view of an external structure of a blast furnace body according to an embodiment of the present invention;

FIG. 3 is a schematic view of an internal structure of an exhaust pipe according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of FIG. 3 at A provided by an embodiment of the present application;

FIG. 5 is an enlarged view at B in FIG. 3 provided by an embodiment of the present application;

FIG. 6 is an enlarged view of the spring of FIG. 3 according to an embodiment of the present disclosure;

fig. 7 is a schematic structural view of a front end surface of the dust box in fig. 3 according to an embodiment of the present application.

In the figure: 100-blast furnace body; 110-an exhaust pipe; 111-a screen; 112-a first one-way valve; 113-a second one-way valve; 114-a sealing ring; 115-a timing switch; 116-a controller; 200-a dust removal mechanism; 210-an electric push rod; 220-an elastic member; 221-a brush; 222-a sleeve; 223-inner rod; 224-a spring; 230-a pump body; 231-a catheter; 232-heating wires; 233-temperature sensor; 240-an exhaust fan; 241-an exhaust pipe; 242-dust box; 243-activated carbon plate; 244-a door; 245-a mount; 250-bag house; 260-cyclone dehydrator; 270-collecting box.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a blast furnace gas purification and dehydration apparatus, which includes a blast furnace body 100 and a dust removing mechanism 200.

Referring to fig. 2-7, an exhaust pipe 110 is disposed at the top of a blast furnace body 100, a filter screen 111 is disposed in the exhaust pipe 110 in an inclined manner, a first check valve 112 and a second check valve 113 are disposed on the exhaust pipe 110 and on two sides of the filter screen 111, respectively, a dust removing mechanism 200 includes an electric push rod 210, an elastic member 220, a pump body 230, an exhaust fan 240, a bag filter 250, a cyclone dehydrator 260, and a collecting box 270, the electric push rod 210 is disposed at the top of the exhaust pipe 110, an output shaft of the electric push rod 210 penetrates through the exhaust pipe 110 and is connected to the elastic member 220, a brush 221 contacting the filter screen 111 is disposed at one end of the elastic member 220, the pump body 230 is communicated with the top of the exhaust pipe 110, one end of the exhaust fan 240 is communicated with the bottom of the exhaust pipe 110 through an exhaust pipe 241, a dust collecting box 242 is disposed at the other end of the exhaust fan 240, and the exhaust pipe 110, the bag filter 250, the cyclone dehydrator 260 and the collecting box 270 are sequentially communicated.

In some specific embodiments, a sealing ring 114 is disposed between the output shaft of the electric push rod 210 and the exhaust pipe 110, an inner wall of the sealing ring 114 is movably connected to an outer wall of the output shaft of the electric push rod 210, and the sealing ring 114 can improve the sealing property between the output shaft of the electric push rod 210 and the exhaust pipe 110, so that the gas introduced into the pump body 230 is not easy to flow out through a gap between the output shaft of the electric push rod 210 and the exhaust pipe 110.

In some specific embodiments, the elastic member 220 includes a sleeve 222, an inner rod 223 and a spring 224, the sleeve 222 is slidably sleeved on the inner rod 223, one end of the spring 224 is fixedly connected to an inner wall of the sleeve 222, and the other end of the spring 224 is fixedly connected to the inner rod 223, so that stability of the elastic member 220 during lateral extension and retraction is enhanced by the manner that the sleeve 222 is slidably sleeved on the inner rod 223, so that the brush 221 contacts the filter screen 111.

In some specific embodiments, the same mounting seat 245 is fixed at the bottom of the exhaust fan 240 and the bottom of the dust collection box 242, one end of the mounting seat 245 is welded with the blast furnace body 100, and the mounting seat 245 plays a role in supporting the exhaust fan 240 and the dust collection box 242, so that the vibration degree of the exhaust fan 240 during operation is reduced to a certain degree.

In some specific embodiments, the top of the exhaust pipe 241 is in a bucket shape, an activated carbon plate 243 is arranged inside the dust collection box 242, the activated carbon plate 243 is provided with a plurality of air inlets and uniformly distributed at the bottom of the inner wall of the dust collection box 242, the exhaust pipe 241 with the bucket shape design at the top is convenient for absorbing more dust, and the activated carbon plate 243 has adsorbability and can play a better role in storing the dust in the dust collection box 242.

In some specific embodiments, the bottoms of the activated carbon plates 243 are all connected to the dust box 242 through bolts, the front end surface of the dust box 242 is hinged to a box door 244, an observation window is arranged on the box door 244, the bolts realize a movable installation mode between the activated carbon plates 243 and the dust box 242, dust inside the dust box 242 can be observed through the observation window, if the surface of the activated carbon plates 243 has more dust, the box door 244 can be opened, and the activated carbon plates 243 can be replaced so as to clean the dust inside the dust box 242.

In some specific embodiments, the top of the exhaust pipe 110 is provided with a timing switch 115, the timing switch 115 is electrically connected to the electric push rod 210, and the electric push rod 210 can be started and closed at regular intervals by the timing switch 115, so that a worker does not need to stay beside the electric push rod 210 for a long time, and manpower is saved.

In some specific embodiments, the pump body 230 may be configured as an air pump or a water pump, the pump body 230 is communicated with the exhaust pipe 110 through a conduit 231, a heating wire 232 and a temperature sensor 233 are disposed inside the conduit 231, the controller 116 is disposed on the top of the exhaust pipe 110, the controller 116 is electrically connected to the heating wire 232 and the temperature sensor 233, when the pump body 230 is a water pump, cleaning liquid or tap water can be filled into the exhaust pipe 110 through the water pump, the controller 116 can be activated before the liquid passes through the conduit 231, so that the heating wire 232 is heated, dust on the filter screen 111 can be removed easily by the heated liquid, the temperature sensor 233 can detect the temperature inside the conduit 231, if the temperature is too high, the controller 116 receives a signal sent by the temperature sensor 233, and then the heating wire 232 is turned off.

In some specific embodiments, the heating wire 232 is symmetrically disposed in two inside the conduit 231 and is designed to be meander, and the heating wire 232 of the meander design has a longer length so as to rapidly heat the inside of the conduit 231.

In some embodiments, a battery is disposed on the top of the exhaust pipe 110, and the battery is electrically connected to the controller 116, and the battery can supply power to the controller 116 to increase the endurance time of the controller 116.

The working principle of the blast furnace gas purification and dehydration device is as follows: firstly closing the first one-way valve 112 and the second one-way valve 113, starting the electric push rod 210, the output shaft of the electric push rod 210 drives the brush 221 at one end of the elastic member 220 to move downwards, because the filter screen 111 is arranged obliquely, in the process that the brush 221 moves from top to bottom, the elastic member 220 is changed from a compressed state to an extended state, so that the brush 221 always contacts the filter screen 111 and drops dust on the filter screen 111, an included angle between one side of the filter screen 111 close to the first one-way valve 112 and the inner bottom of the exhaust pipe 110 is smaller than 90 degrees, so that the dust is more likely to drop, meanwhile, starting the pump body 230 and the exhaust fan 240, because the first one-way valve 112 and the second one-way valve 113 are closed, the gas or liquid output by the pump body 230 can only pass through the filter screen 111 and enter the exhaust pipe 241, the dust enters the dust collection box 242 through the suction force of the exhaust fan 240 to complete collection, and then opening the first one-way valve 112 and the second one-way valve 113, the coal gas discharged from the blast furnace body 100 enters the bag type dust collector 250, the bag type dust collector 250 further removes dust from the coal gas, the three-stage full dry purification process of the bag type dust collector 250 can avoid the generation of washing wastewater, the pollution to a water system is eliminated, then the coal gas enters the cyclone dehydrator 260 to complete the dehydration process, and the dehydrated coal gas enters the collection box 270 to complete the collection.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A blast furnace gas purification and dehydration device is characterized by comprising

The blast furnace comprises a blast furnace body (100), wherein an exhaust pipe (110) is arranged at the top of the blast furnace body (100), a filter screen (111) is obliquely arranged in the exhaust pipe (110), and a first check valve (112) and a second check valve (113) are respectively arranged on the exhaust pipe (110) and positioned at two sides of the filter screen (111);

the dust removal mechanism (200), the dust removal mechanism (200) comprises an electric push rod (210), an elastic piece (220), a pump body (230), an exhaust fan (240), a bag type dust remover (250), a cyclone dehydrator (260) and a collection box (270), the electric push rod (210) is arranged at the top of the exhaust pipe (110), an output shaft of the electric push rod (210) penetrates through the exhaust pipe (110) to be connected with the elastic piece (220), one end of the elastic piece (220) is provided with a brush (221) which is contacted with the filter screen (111), the pump body (230) is communicated with the top of the exhaust pipe (110), one end of the exhaust fan (240) is communicated with the bottom of the exhaust pipe (110) through an exhaust pipe (241), the other end of the exhaust fan (240) is provided with a dust collection box (242), and the exhaust pipe (110), the bag type dust collector (250), the cyclone dehydrator (260) and the collection box (270) are sequentially communicated.

2. The blast furnace gas purification and dehydration device according to claim 1, wherein a sealing ring (114) is arranged between the output shaft of the electric push rod (210) and the exhaust pipe (110), and the inner wall of the sealing ring (114) is movably connected with the outer wall of the output shaft of the electric push rod (210).

3. The blast furnace gas purification and dehydration device according to claim 1, wherein the elastic member (220) comprises a sleeve (222), an inner rod (223) and a spring (224), the sleeve (222) is slidably sleeved on the inner rod (223), one end of the spring (224) is fixedly connected with the inner wall of the sleeve (222), and the other end of the spring (224) is fixedly connected with the inner rod (223).

4. The blast furnace gas purification and dehydration apparatus according to claim 1, wherein the same mounting seat (245) is fixed to the bottom of the exhaust fan (240) and the bottom of the dust box (242), and one end of the mounting seat (245) is welded to the blast furnace body (100).

5. The blast furnace gas purification and dehydration device according to claim 1, wherein the top of the draft tube (241) is a bucket, an activated carbon plate (243) is arranged inside the dust collection box (242), and the activated carbon plate (243) is provided with a plurality of activated carbon plates which are uniformly distributed at the bottom of the inner wall of the dust collection box (242).

6. The blast furnace gas purification and dehydration device according to claim 5, wherein the bottoms of the activated carbon plates (243) are all connected with the dust collection box (242) through bolts, the front end surface of the dust collection box (242) is hinged with a box door (244), and the box door (244) is provided with an observation window.

7. The blast furnace gas purification and dehydration device according to claim 1, characterized in that a timing switch (115) is arranged on the top of the exhaust pipe (110), and the timing switch (115) is electrically connected with the electric push rod (210).

8. The blast furnace gas purification and dehydration device according to claim 1, wherein the pump body (230) is configured as a gas pump or a water pump, the pump body (230) is communicated with the exhaust pipe (110) through a conduit (231), a heating wire (232) and a temperature sensor (233) are arranged inside the conduit (231), a controller (116) is arranged on the top of the exhaust pipe (110), and the controller (116) is electrically connected with the heating wire (232) and the temperature sensor (233) respectively.

9. The blast furnace gas purification and dewatering device according to claim 8, characterized in that the heating wires (232) are symmetrically arranged in two inside the conduit (231) and are of a meander design.

10. The blast furnace gas purification and dehydration device according to claim 8, wherein a storage battery is disposed on the top of the exhaust pipe (110), and the storage battery is electrically connected to the controller (116).

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