CN108165691A - A kind of blast furnace gas excess pressure energy recovering device - Google Patents

Abstract

The invention discloses a kind of blast furnace gas excess pressure energy recovering devices,Including the babinet A being fixedly arranged on ground,Rotation chamber is provided in the babinet A,The pipeline A for extending exterior space to the left is provided with and communicated in the rotation chamber left end wall,The pipeline A left sides are provided with and communicated with valve A,The valve A left sides are provided with and communicated with pipeline B,Pipeline C is provided with and communicated in the rotation chamber right end wall,The water capacity chamber in the babinet A is provided on the right side of the pipeline C,The pipeline C right sides are provided with and communicated with valve B,The valve B right sides are provided with and communicated with the pipeline D connected with the water capacity chamber,The pipeline E for extending exterior space to the right is provided with and communicated in the water capacity chamber right end wall,The pipeline E right sides are provided with and communicated with valve C,Apparatus of the present invention are simple in structure,It is easy to use,This device uses formula structure easy to clean,Realize the energy regenerating of blast furnace waste pressure coal gas,Effectively increase device energy ecology.

Description

A blast furnace gas residual pressure energy recovery device

technical field

The invention relates to the energy field, in particular to a blast furnace gas residual pressure energy recovery device.

Background technique

With the development of science and technology and the progress of society, the country has been promoting the development of high technology. In the traditional blast furnace gas combustion device, due to the incomplete combustion of coal, a large amount of high-pressure gas is often produced. The traditional gas residual pressure recovery device cannot Better cleanliness and efficient recycling of pipelines. This device largely solves this problem.

Contents of the invention

The purpose of the present invention is to provide a blast furnace gas residual pressure energy recovery device, which can overcome the above-mentioned defects of the prior art.

According to the present invention, a blast furnace gas residual pressure energy recovery device of the present invention includes a box body A fixed on the ground, a rotating cavity is arranged in the box body A, and the left end wall of the turning cavity is communicated with a A pipe A extending to the left from the external space, the left end of the pipe A is connected with a valve A, the left end of the valve A is connected with a pipe B, and the right end wall of the rotating chamber is connected with a pipe C. The right side of C is provided with a water chamber located in the box A, the right end of the pipe C is connected with a valve B, and the right end of the valve B is connected with a pipe D connected with the water chamber, so The right end wall of the water chamber is communicated with a pipe E extending out of the external space to the right. The right end of the pipe E is connected with a valve C, and the right end of the valve C is connected with a pipe F. The right end of the water chamber The wall is connected with a pipe G extending rightward out of the external space, the right end of the pipe G is connected with a valve D, the right end of the valve D is connected with a pipe H, and the upper end wall of the rotating chamber is connected with a valve located at For the pipeline I in the box A, the upper end of the pipeline I is connected with a valve E, the upper end of the valve E is connected with a pipeline J, and the right end of the pipeline J is connected with a valve located in the box A. The installation cavity, the right end wall of the installation cavity is connected with a cone cavity located in the box A, the rear end surface of the installation cavity is fixed with a fixed block, and a generator is fixed in the fixed block, and the power generator The right end surface of the power shaft of the machine is fixed with a spiral blade located in the cone cavity, and the right end wall of the cone cavity is connected with a pipe K, and the pipe K runs through the water chamber and extends downwards out of the external space. The lower end surface of the pipeline K is connected with a valve F, the lower end surface of the valve F is connected with a pipeline L, and the lower end wall of the rotating chamber is provided with a pipeline M extending downward to the external space, and the lower end surface of the pipeline M is connected. There is an on-off valve A, the lower end of the on-off valve A is connected with a conduit A, and a box B is arranged below the conduit A, and a box cavity with an opening facing downward is arranged inside the box B, and the conduit A runs through the The box body B communicates with the box body cavity, and a solid block is fixed in the rear end wall of the box body cavity, and a spring cavity with an opening facing downward is arranged in the solid block, and a direction is slidably arranged in the spring cavity. The sliding handle extending downward, the lower end surface of the sliding handle is fixed with a push plate that is slidably connected to the lower end opening of the box cavity, and a conduit B fixed to the lower end surface of the box B is arranged below the push plate. The conduit B is provided with a conduit lumen that penetrates up and down, and the conduit cavity communicates with the push plate. The lower end surface of the conduit B is connected with a switch valve B, and the lower end surface of the switch valve B is connected with a conduit C. A motor is fixed in the rear end wall of the rotating cavity, a backing plate is fixed on the front end of the power shaft of the motor, a connecting pipe passing through the backing plate is arranged in the backing plate, and a connecting pipe is arranged in the connecting pipe A lumen that penetrates up and down, the outer surface of the connecting pipe is provided with sliders symmetrically up and down, and an opening with an opening facing inward is fixed in the end surface of the slider near the backing plate, and the connecting pipe extends into the opening. The mouth is connected with the opening in a sliding fit, and the The inner wall of the opening is communicated with a through cavity, and the inner wall of the opening away from the backing plate is communicated with a sliding cavity with an opening facing outward. The pipeline I and the pipeline M are opposite to the sliding cavity, and the pipeline I and the pipeline M are respectively connected with the sliding cavity by sliding fit, and the upper and lower end surfaces of the backing plate are fixed with a vertically symmetrical cylinder, and the outer end surface of the push rod of the cylinder is fixed with a push plate fixed with the slider. The upper and lower ends of the backing plate are fixed with up and down symmetrical guide rails, and the left end of the guide rails is slidably provided with a slider fixed to the push plate, thus forming a complete blast furnace gas residual pressure recovery device, which effectively improves the efficiency of residual pressure recovery. efficiency.

In a further technical solution, the distance between the pipeline A and the pipeline C is the same as the distance between the pipeline I and the pipeline M, thereby improving the operation stability of the device.

In a further technical solution, the revolving blade of the spiral blade forms a certain angle with the excess pressure gas blown from the installation chamber, so that the excess pressure gas drives the spiral blade to rotate, thereby improving the recovery efficiency of the device.

In a further technical solution, a spring is arranged between the upper end wall of the spring chamber and the upper end surface of the sliding handle, thereby improving the flexibility of the device.

In a further technical solution, the pipe K located in the water chamber is a curved pipe, thereby improving the waste heat absorption effect of the device.

The beneficial effects of the present invention are:

Since the device of the present invention is in the initial state, the generator, the motor and the cylinder are in a stopped state, and the valve A, valve B, valve C, valve D, valve F, valve E and switch valve A are in a closed state, thereby Keep each moving structure in the initial state, which is beneficial to maintenance and installation.

When the device is in operation, the valve C and the valve D are opened, and the cooling water is introduced into the water chamber through the pipeline F, the valve C and the pipeline E, and is led back through the pipeline G, the valve D and the pipeline H To the external water circulation, the on-off valve B is opened to allow residual pressure gas to pass through the conduit C and push the push plate upwards to allow the residual pressure gas to enter the box cavity, and the on-off valve A is opened to allow The residual pressure gas in the box cavity is passed into the tube cavity by the conduit A and the switch valve A, and then passed into the pipeline I through the opening cavity, the through cavity and the sliding cavity, and the valve E Open, the residual pressure gas is passed into the installation cavity from the pipeline J, and the spiral blade is blown and then rotated to make the generator work to generate electric energy, and the residual pressure gas enters the pipeline from the cone cavity K realizes heat exchange in the water chamber, and the heat of the excess pressure gas is taken out of the external space by the cooling water in the water chamber, the valve F is opened, and the excess pressure gas is recovered for use in the next step. Therefore, the power generation structure and the residual temperature recovery structure are adopted to fully recover the energy of the excess pressure gas, which effectively improves the reliability of the device.

When cleaning the conveying pipeline, the cylinder drives the slider to move inward, so that the slider slides inward, so that the pipeline I and pipeline M are separated from the sliding chamber, and the motor drives the connecting The pipe rotates so that the slider is directly opposite to the pipeline A and pipeline C, and the cylinder drives the slider to move outward, so that the pipeline A and pipeline C slide into the sliding chamber, and the valve A. Valve B and valve D are opened, the valve C is closed, and the washing solution is passed into the pipeline H, so that the washing solution enters the pipeline D from the pipeline H, the valve D, the pipeline G and the water chamber , valve B and pipeline C, and flow into the pipeline A, valve A and pipeline B through the lumen, so that the washing liquid carrying impurities is passed into the external space for recycling, thereby improving the cleaning convenience of the device.

The device of the invention has simple structure and is convenient to use. The device adopts an easy-to-clean structure, realizes the energy recovery of the residual pressure gas of the blast furnace, and effectively improves the energy use efficiency of the device.

The above is only the specific implementation of the invention, but the scope of protection of the invention is not limited thereto, and any changes or replacements that are not thought of through creative work should be covered within the scope of protection of the invention. Therefore, the protection scope of the invention should be determined by the protection scope defined in the claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only For some embodiments of the invention, those skilled in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is the overall structure schematic diagram of a kind of blast furnace gas residual pressure energy recovery device of the present invention;

Fig. 2 is a schematic diagram of direction A in Fig. 1;

Fig. 3 is the enlarged schematic view of B in Fig. 1;

FIG. 4 is a schematic diagram of direction C in FIG. 1 .

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

As shown in Figures 1-4, a blast furnace gas residual pressure energy recovery device of the present invention includes a box body A100 fixed on the ground, and a rotating cavity 122 is arranged inside the box body A100, and the left end of the rotating cavity 122 is A pipeline A125 extending to the left out of the external space is communicated in the wall, a valve A123 is communicated with the left end of the pipeline A125, a pipeline B124 is communicated with the left end of the valve A123, and a pipeline B124 is communicated with the right end wall of the rotating chamber 122. Pipe C120, the right side of the pipe C120 is provided with a water chamber 115 located in the box A100, the right end of the pipe C120 is connected with a valve B119, and the right end of the valve B119 is connected with the water chamber. The pipe D118 connected to the chamber 115, the right end wall of the water chamber 115 is connected with a pipe E109 extending to the right to the outside space, the right end of the pipe E109 is connected with a valve C110, and the right end of the valve C110 is connected with a valve C110. Pipeline F111, the right end wall of the water chamber 115 is connected with a pipe G114 extending rightward to the outside space, the right end of the pipe G114 is connected with a valve D113, and the right end of the valve D113 is connected with a pipe H112. The upper end wall of the rotating chamber 122 is connected with a pipeline I101 located in the box A100, the upper end of the pipeline I101 is connected with a valve E102, and the upper end of the valve E102 is connected with a pipeline J103. The right end of the pipeline J103 The installation cavity 140 located in the box body A100 is connected to the surface, and the right end wall of the installation cavity 140 is connected to the cone cavity 107 located in the box body A100. The rear end surface of the installation cavity 140 is fixed with a fixed block 104, the fixed block 104 is fixed with a generator 105, the right end surface of the power shaft of the generator 105 is fixed with a spiral blade 106 located in the cone cavity 107, and the right end wall of the cone cavity 107 is connected with a Pipe K108, the pipe K108 runs through the water chamber 115 and extends downwards out of the external space, the lower end of the pipe K108 is connected with a valve F116, the lower end of the valve F116 is connected with a pipe L117, the rotating chamber 122, a pipe M121 extending downwards out of the outer space is provided in the lower end wall, and the lower end of the pipe M121 is connected with an on-off valve A300. Body B302, the box body B302 is provided with a box body cavity 303 with the opening facing downward, the conduit A301 runs through the box body B302 and communicates with the box body cavity 303, and the rear end wall of the box body cavity 303 is fixed with a fixed Block 304, the fixed block 304 is provided with a spring cavity 305 with the opening facing downwards, and a sliding handle 306 extending downward is slidably provided in the spring cavity 305, and the lower end surface of the sliding handle 306 is fixed with the The push plate connected by the sliding fit of the opening of the lower end of the box cavity 303 307, a conduit B308 fixed to the lower end surface of the box body B302 is provided below the push plate 307, and a conduit lumen 309 penetrating up and down is arranged in the conduit B308, and the conduit lumen 309 and the push plate 307 The lower end of the conduit B308 is communicated with a switching valve B310, the lower end of the switching valve B310 is connected with a conduit C311, and the motor 200 is fixed in the rear end wall of the rotating chamber 122. The power shaft of the motor 200 A backing plate 133 is fixed on the front end surface, and a connecting pipe 131 passing through the backing plate 133 is arranged inside the backing plate 133. A lumen 132 penetrating up and down is arranged inside the connecting pipe 131, and the outer surface of the connecting pipe 131 A slider 130 is symmetrically arranged up and down, and an opening cavity 129 with an opening facing inward is fixed in the end surface of the slider 130 close to the backing plate 133, and the connecting pipe 131 extends into the opening cavity 129 to communicate with the opening. The cavity 129 is connected by sliding fit, and the inner wall of the opening cavity 129 far away from the backing plate 133 is connected with a through cavity 128, and the inner wall of the opening cavity 129 far away from the backing plate 133 is connected with a sliding cavity with an opening facing outward. 127, the pipeline I101 and the pipeline M121 are opposite to the sliding chamber 127 and the pipeline I101 and the pipeline M121 are respectively connected to the sliding chamber 127 by sliding fit, and the upper and lower ends of the backing plate 133 are fixed with vertically symmetrical cylinders 134 The outer end surface of the push rod of the cylinder 134 is fixed with a push plate 137 fixed with the slider 130, and the upper and lower end surfaces of the backing plate 133 are fixed with a vertically symmetrical guide rail 135, and the left end surface of the guide rail 135 is slidable. A slider 136 fixed to the push plate 137 is provided, thereby forming a complete blast furnace gas residual pressure recovery device, which effectively improves the efficiency of residual pressure recovery.

Advantageously, the distance between the pipeline A125 and the pipeline C120 is the same as the distance between the pipeline I101 and the pipeline M121, thereby improving the operation stability of the device.

Beneficially, the revolving blade of the spiral blade 106 forms a certain angle with the excess pressure gas blown from the installation chamber 140, so that the excess pressure gas drives the spiral blade 106 to rotate, thereby improving the recovery efficiency of the device.

Advantageously, a spring is arranged between the upper end wall of the spring chamber 305 and the upper end surface of the sliding handle 306, thereby improving the flexibility of the device.

Beneficially, the pipe K108 located in the water chamber 115 is a curved pipe, thereby improving the waste heat absorption effect of the device.

When the device of the present invention is in the initial state, the generator 105, the motor 200 and the cylinder 134 are in a stopped state, and the valve A123, valve B119, valve C110, valve D113, valve F116, valve E102 and switch valve A300 are in a closed state .

When the device is in operation, the valve C110 and the valve D113 are opened, and the cooling water is introduced into the water chamber 115 through the pipeline F111, the valve C110 and the pipeline E109, and then introduced into the water chamber 115 by the pipeline G114, the valve D113 and the pipeline H112. Returning to the external water cycle, the on-off valve B310 is opened to allow the excess pressure gas to pass through the conduit C311 and push the push plate 307 upwards so that the excess pressure gas enters the box cavity 303, and the on-off valve A300 Open, so that the residual pressure gas in the box cavity 303 is passed into the tube cavity 132 by the conduit A301 and the switch valve A300, and then passes through the opening cavity 129, the through cavity 128 and the sliding cavity 127 into the In the pipeline I101, the valve E102 is opened, and the residual pressure gas is passed into the installation chamber 140 from the pipeline J103, and the spiral blade 106 is blown and then rotated to make the generator 105 work to generate electric energy. The compressed gas enters the pipeline K108 from the conical chamber 107 to realize heat exchange in the water chamber 115, and the heat of the residual pressure gas is taken out of the external space by the cooling water in the water chamber 115, and the valve F116 is opened, and the excess pressure gas is recovered for use in the next process.

When the conveying pipeline is cleaned, the cylinder 134 drives the slider 136 to move inward, so that the slider 130 slides inward, so that the pipeline I101 and the pipeline M121 are separated from the sliding chamber 127, and the motor 200 drives the connecting pipe 131 to rotate, so that the slider 130 faces the pipeline A125 and the pipeline C120, and the cylinder 134 drives the slider 136 to move outward, so that the pipeline A125 and the pipeline C120 slide into In the sliding chamber 127, the valve A123, the valve B119 and the valve D113 are opened, the valve C110 is closed, and the washing solution is passed into the pipeline H112, so that the washing solution is passed through the pipeline H112, the valve D113, and the pipeline G114. And the water chamber 115 enters the pipeline D118, the valve B119 and the pipeline C120, and flows into the pipeline A125, the valve A123 and the pipeline B124 through the lumen 132, so that the washing liquid carrying impurities is passed into the external space Recycle.

The beneficial effects of the present invention are: since the device of the present invention is in the initial state, the generator, the motor and the cylinder are in the stop working state, the valve A, the valve B, the valve C, the valve D, the valve F, the valve E and the switch Valve A is in the closed state, so that each moving structure is in the initial state, which is beneficial to maintenance and installation.

When the device is in operation, the valve C and the valve D are opened, and the cooling water is introduced into the water chamber through the pipeline F, the valve C and the pipeline E, and is led back through the pipeline G, the valve D and the pipeline H To the external water circulation, the on-off valve B is opened to allow residual pressure gas to pass through the conduit C and push the push plate upwards to allow the residual pressure gas to enter the box cavity, and the on-off valve A is opened to allow The residual pressure gas in the box cavity is passed into the tube cavity by the conduit A and the switch valve A, and then passed into the pipeline I through the opening cavity, the through cavity and the sliding cavity, and the valve E Open, the residual pressure gas is passed into the installation cavity from the pipeline J, and the spiral blade is blown and then rotated to make the generator work to generate electric energy, and the residual pressure gas enters the pipeline from the cone cavity K realizes heat exchange in the water chamber, and the heat of the excess pressure gas is taken out of the external space by the cooling water in the water chamber, the valve F is opened, and the excess pressure gas is recovered for use in the next step. Therefore, the power generation structure and the residual temperature recovery structure are adopted to fully recover the energy of the excess pressure gas, which effectively improves the reliability of the device.

When cleaning the conveying pipeline, the cylinder drives the slider to move inward, so that the slider slides inward, so that the pipeline I and pipeline M are separated from the sliding chamber, and the motor drives the connecting The pipe rotates so that the slider is directly opposite to the pipeline A and pipeline C, and the cylinder drives the slider to move outward, so that the pipeline A and pipeline C slide into the sliding chamber, and the valve A. Valve B and valve D are opened, the valve C is closed, and the washing solution is passed into the pipeline H, so that the washing solution enters the pipeline D from the pipeline H, the valve D, the pipeline G and the water chamber , valve B and pipeline C, and flow into the pipeline A, valve A and pipeline B through the lumen, so that the washing liquid carrying impurities is passed into the external space for recycling, thereby improving the cleaning convenience of the device.

The device of the invention has simple structure and is convenient to use. The device adopts an easy-to-clean structure, realizes the energy recovery of the residual pressure gas of the blast furnace, and effectively improves the energy use efficiency of the device.

The above is only the specific implementation of the invention, but the scope of protection of the invention is not limited thereto, and any changes or replacements that are not thought of through creative work should be covered within the scope of protection of the invention. Therefore, the protection scope of the invention should be determined by the protection scope defined in the claims.

Claims (5)

1. A blast furnace gas residual pressure energy recovery device, comprising a box A fixed on the ground, said box A is provided with a rotating cavity, and the left end wall of said rotating cavity is communicated with an external space extending to the left A pipeline A, the left end of the pipeline A is communicated with a valve A, the left end of the valve A is communicated with a pipeline B, the right end wall of the rotating chamber is communicated with a pipeline C, and the right side of the pipeline C is provided with a In the water chamber in the box A, the right end of the pipe C is connected with a valve B, and the right end of the valve B is connected with a pipe D connected with the water chamber, and the right end wall of the water chamber is There is a pipe E extending rightward to the external space in internal communication, a valve C is connected to the right end of the pipe E, a pipe F is connected to the right end of the valve C, and a pipe F is connected to the right end wall of the water chamber. The pipe G extending out of the external space on the right, the right end of the pipe G is connected with a valve D, the right end of the valve D is connected with a pipe H, and the upper end wall of the rotating chamber is connected with a valve located in the box A. A pipeline I, the upper end of the pipeline I is connected with a valve E, the upper end of the valve E is connected with a pipeline J, and the right end of the pipeline J is connected with an installation cavity in the box A, the The right end wall of the installation cavity is communicated with a conical cavity located in the box body A. A fixed block is fixed on the rear end surface of the installation cavity, and a generator is fixed inside the fixed block. The right end surface of the power shaft of the generator is A helical leaf located in the cone cavity is fixed, and a pipe K is connected to the right end wall of the cone cavity. The pipe K runs through the water chamber and extends downwards out of the external space. The lower end of the pipe K communicates with A valve F is provided, the lower end of the valve F is connected with a pipeline L, and the lower end wall of the rotating chamber is provided with a pipeline M extending downward to the external space, and the lower end of the pipeline M is connected with an on-off valve A. The lower end surface of the on-off valve A is communicated with a conduit A, and a box B is arranged below the conduit A, and a box cavity with an opening facing downward is arranged in the box B, and the conduit A runs through the box B and the box body B. The box cavity is connected, and a solid block is fixed in the rear end wall of the box cavity. A spring cavity with an opening facing downward is arranged in the solid block, and a sliding handle extending downward is slidably provided in the spring cavity. The lower end surface of the sliding handle is fixed with a push plate that is slidably connected to the opening of the lower end of the box cavity, and a conduit B fixed to the lower end surface of the box B is arranged below the push plate, and the conduit B is provided with a A catheter lumen that penetrates up and down, the catheter lumen communicates with the push plate, the lower end surface of the catheter B is communicated with a switch valve B, and the lower end surface of the switch valve B is communicated with a catheter C. After the rotating cavity A motor is fixed inside the end wall, a backing plate is fixed on the front end of the power shaft of the motor, and a connecting pipe passing through the backing plate is arranged in the backing plate, and a lumen penetrating up and down is arranged in the connecting pipe, The outer surface of the connecting pipe is provided with sliders symmetrically up and down, and the end surface of the slider close to the backing plate is fixed with an opening opening facing inward, and the connecting pipe extends into the opening opening to communicate with the opening The oral cavity is connected by sliding fit, and the inner wall of the opening of the backing plate is far away from the communication setting There is a through cavity, and the inner wall of the opening away from the backing plate is communicated with a sliding cavity with an opening facing outward. The pipeline I and the pipeline M are opposite to the sliding cavity, and the pipeline I and the pipeline M are respectively connected to the The sliding cavity is connected by sliding fit, the upper and lower end surfaces of the backing plate are fixed with a vertically symmetrical cylinder, the outer end surface of the push rod of the cylinder is fixed with a push plate fixed with the slider, and the upper and lower end surfaces of the backing plate are fixed. There are up and down symmetrical guide rails, and the left end surface of the guide rails is slidably provided with a slider fixed to the push plate. 2. A blast furnace gas residual pressure energy recovery device as claimed in claim 1, characterized in that: the distance between the pipeline A and the pipeline C is the same as the distance between the pipeline I and the pipeline M. 3. A blast furnace gas residual pressure energy recovery device as claimed in claim 1, characterized in that: the revolving blade of the spiral blade forms a certain angle with the residual pressure gas blown from the installation cavity, so that the residual pressure gas will The spiral leaves are driven to rotate. 4. A blast furnace gas residual pressure energy recovery device according to claim 1, characterized in that a spring is arranged between the upper end wall of the spring chamber and the upper end surface of the sliding handle. 5. A blast furnace gas residual pressure energy recovery device according to claim 1, characterized in that: the pipe K located in the water chamber is a curved pipe.