Smoke emergency discharge device for multi-section furnace

Abstract

The utility model relates to a flue gas emergency discharge device for a multi-section furnace in the technical field of multi-section furnace auxiliary equipment, which comprises a valve plate arranged at the top of a flue gas pipeline, a flue gas outlet is arranged at the top of the flue gas pipeline, a sealing component is arranged on the circumference of the flue gas outlet corresponding to the valve plate, and the valve plate is hermetically covered on the upper side of the flue gas outlet. The valve plate is provided with an overturning end extending horizontally towards the outer side of the smoke outlet, an overturning supporting assembly is arranged at the position, close to the smoke outlet, of the lower side of the overturning end and used for supporting the valve plate in an overturning mode, and a driving part for driving the valve plate to overturn so as to open the smoke outlet is arranged on the lower side of the overturning end of the valve plate on the outer side of the overturning supporting assembly. Compared with the prior art, the structure of the emergency discharge device has the advantages that the structure of the smoke emergency discharge device is simplified, the difficulty of installation and maintenance work is reduced, and the service life of the smoke emergency discharge device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage furnace auxiliary equipment, and particularly relates to a flue gas emergency discharge device for a multi-stage furnace. Background Technique

[0002] The main raw materials of activated carbon can be almost all carbon-rich organic materials, such as coal, wood, fruit shells, coconut shells, walnut shells, apricot shells, jujube shells, etc. These carbon-containing materials are converted into activated carbon through pyrolysis in an activation furnace at high temperature and certain pressure. During this activation process, a huge surface area and a complex pore structure are gradually formed, and the so-called adsorption process takes place in these pores and on the surface. The size of the pores in activated carbon has a selective adsorption effect on adsorbates, because macromolecules cannot enter the pore diameter of activated carbon smaller than its pores. Activated carbon is a hydrophobic adsorbent made from carbon-containing substances as raw materials through high-temperature carbonization and activation. Activated carbon contains a large number of micropores, has an extremely large surface area, can effectively remove color and odor, and can remove most organic pollutants and some inorganic substances in secondary effluent, including some toxic heavy metals.

[0003] With the increasingly wide application of activated carbon, it is of practical and wide significance to regenerate the saturated carbon after adsorption and then achieve recycling, and the corresponding technology also needs to be continuously improved and innovated.

[0004] In order to prevent furnace failures in a multi-stage furnace for regenerating activated carbon, it is necessary to urgently discharge the flue gas in the furnace. Emergency discharge branches need to be separately arranged at the tail gas discharge port on the furnace top, and emergency discharge valves are provided on the discharge branches. A dust-proof cover is also provided at the top of the smoke exhaust pipe above the emergency discharge valve to prevent environmental foreign objects from falling in. However, during long-term use, the valve is in a normally closed state, and the side in contact with the flue gas is corroded by the flue gas for a long time, which easily causes valve failures and short service life problems. Content of the Utility Model

[0005] Aiming at the problems existing in the installation structure of the emergency discharge valve of a multi-stage furnace in the prior art, the utility model provides a flue gas emergency discharge device for a multi-stage furnace, which realizes the dual functions of emergency discharge and prevention of foreign objects from falling by changing the setting position of the emergency discharge.

[0006] The object of the present utility model is achieved as follows. A flue gas emergency discharge device for a multi-stage furnace includes a valve plate installed at the top of a flue gas pipeline. A smoke exhaust port is provided at the top of the flue gas pipeline. A sealing assembly is provided around the smoke exhaust port corresponding to the valve plate. The valve plate is hermetically installed on the upper side of the smoke exhaust port. It is characterized in that the valve plate is provided with a horizontally extending flipping end towards the outside of the smoke exhaust port. A flipping support assembly is provided at a position near the smoke exhaust port on the lower side of the flipping end for rotatably supporting the valve plate. A driving component for driving the valve plate to flip and open the smoke exhaust port is provided on the lower side of the flipping end of the valve plate outside the flipping support assembly.

[0007] The flue gas emergency discharge device for a multi-stage furnace of the present utility model is changed from the middle of the flue gas pipeline to the smoke exhaust port at the top. A smoke exhaust port is opened and closed by a rotatable valve plate. When the valve plate is closed, the smoke exhaust port is closed, and at the same time, foreign objects in the environment can be prevented from falling in, and there is no need to additionally provide a protective cover. Compared with the structure of installing a discharge valve in the middle of the smoke exhaust pipeline in the prior art, the structure of the emergency discharge device of the present utility model simplifies the structure of the flue gas emergency discharge device, reduces the difficulty of installation and maintenance work, and prolongs its service life.

[0008] To facilitate the flipping installation of the valve plate, the flipping support assembly includes a flipping shaft. A support seat assembly for rotatably supporting the flipping shaft is provided on the lower side of the flipping end of the valve plate. The support seat assembly includes support seats fixedly provided at positions corresponding to both ends of the flipping shaft on the lower side of the valve plate. The flipping shaft is rotatably connected to the support seats. Support rods are respectively inclined on the lower sides of the support seats. The lower ends of the support rods are fixed to the side wall of the flue gas pipeline. An ear is provided at the upper end of the support rod, and the ear is supported and connected to the flipping shaft.

[0009] To strengthen the stability of the valve plate support, a fixed auxiliary support rod is further provided between the middle and upper parts of the support rod and the side wall of the flue gas pipeline.

[0010] To facilitate driving the valve plate to flip, the driving component includes a cylinder. One end of the rodless end of the cylinder is supported and installed on the side wall of the flue gas pipeline through a hinge seat. The end of the telescopic rod of the cylinder is connected to the corresponding part of the flipping end of the valve plate through a connecting seat. A filter valve and a solenoid valve are respectively connected between the cylinder and the air supply pipeline. The solenoid valve is used to control the action of the cylinder to drive the flipping of the valve plate.

[0011] Further, the cylinder is supported and arranged at the central position in the width direction on the lower side of the valve plate.

[0012] To facilitate monitoring the positions of the cylinder and the valve plate, a magnetic ring for sensing the position of the piston is provided on the side wall of the cylinder for limiting the opening and closing positions of the valve plate.

[0013] To facilitate the installation and maintenance of the valve plate, a plurality of lifting lugs are provided on the periphery of the valve plate. Description of the Drawings

[0014] Figure 1 The front view of the main body of the smoke emergency discharge device for a multi-stage furnace of the utility model.

[0015] Figure 2 It is Figure 1 the right view of

[0016] Wherein, 1 is the flue gas pipeline; 2 is the sealing assembly; 3 is the valve plate; 301 is the flipping end; 4 is the auxiliary support rod; 5 is the support rod; 6 is the support seat; 7 is the connecting seat; 8 is the cylinder; 801 and 802 are magnetic rings; 9 is the hinge seat; 10 is the flipping shaft; 11 is the lifting lug. Specific implementation mode

[0017] The implementation mode of the present utility model will be described in detail below with reference to the accompanying drawings.

[0018] As Figure 1 and Figure 2 shown, it is the smoke emergency discharge device for a multi-stage furnace of the present utility model. The specific structure includes a flue gas pipeline 1 arranged on the top of the multi-stage furnace. The top of the flue gas pipeline 1 is covered with a valve plate 3. The valve plate is in a normally covered state during the normal operation of the multi-stage furnace. A tail gas treatment branch is also branched on the side wall of the lower part of the flue gas pipeline 1, so that the flue gas is discharged to the subsequent tail gas treatment system through the tail gas treatment branch under normal circumstances to implement tail gas treatment. In this embodiment, a smoke exhaust port for emergency discharge is provided at the top of the flue gas pipeline 1. A sealing assembly 2 is arranged around the smoke exhaust port corresponding to the valve plate 3. The sealing assembly is generally a sealing gasket made of high-temperature and corrosion-resistant materials, such as asbestos material, rubber material, etc., to seal the circumference of the smoke exhaust port, so that the valve plate 3 is hermetically covered on the upper side of the smoke exhaust port. A horizontally extending flipping end 301 is arranged on the outside of the valve plate 3 towards the smoke exhaust port. A flipping support assembly is arranged at a position close to the smoke exhaust port on the lower side of the flipping end 301 for rotatably supporting the whole valve plate 3. A driving component for flipping the valve plate 3 to open the smoke exhaust port is arranged on the lower side of the flipping end 301 of the valve plate outside the flipping support assembly.

[0019] In this embodiment, the flipping support assembly includes a flipping shaft 10. A support seat assembly for rotatably supporting the flipping shaft 10 is arranged on the lower side of the flipping end of the valve plate 3. The support seat assembly includes support seats 6 fixedly arranged at positions corresponding to both ends of the flipping shaft 10 on the lower side of the valve plate 3 respectively. The flipping shaft 10 is rotatably connected to the support seats 6. Support rods 5 are respectively arranged obliquely on the lower sides of the support seats 6. The lower ends of the support rods 5 are fixed to the side wall of the flue gas pipeline 1. An ear 501 is arranged at the upper end of the support rod 5. The ear 501 is supported and connected to the flipping shaft 10. To strengthen the stability of the support rod 5 in supporting the valve plate 1, a fixed auxiliary support rod 4 is also arranged between the middle and upper parts of the support rod 5 and the side wall of the flue gas pipeline 1.

[0020] The driving component of this embodiment includes a cylinder 8, which is supported at the central position in the width direction on the lower side of the valve plate 3. One end of the rodless end of the cylinder 8 is supported and installed on the side wall of the flue gas pipe 1 through a hinge seat 9. The end of the telescopic rod of the cylinder 8 is connected to the corresponding part of the turning end 301 of the valve plate through a connecting seat 7. A filter valve and a solenoid valve are respectively connected between the cylinder 8 and the air supply pipeline. The solenoid valve is used to control the action of the cylinder to drive the turning of the valve plate 3.

[0021] To facilitate monitoring the positions of the cylinder 8 and the valve plate 3, magnetic rings 801 (802) for sensing the position of the piston are provided on the side wall of the cylinder 3, which are used to limit the opening and closing positions of the valve plate 3. That is, magnetic rings 802 and 801 are respectively provided on the side walls of the rod end and the rodless end of the cylinder 8. When the piston senses the magnetic ring 801, the valve plate is in the horizontal closed position. When the piston moves to sense the magnetic ring 802, the valve plate turns to the maximum open position. In addition, to facilitate hoisting when the valve plate 3 is installed or overhauled, a number of lifting lugs 11 are provided on the periphery of the valve plate 3.

[0022] The flue gas emergency discharge device for a multi-section furnace of the present utility model is changed from the middle of the flue gas pipe to the top smoke outlet. The smoke outlet is opened and closed by a turnable valve plate 3. When the valve plate 3 is closed, the emergency smoke outlet is closed, and at the same time, it can prevent foreign objects in the environment from falling in, and there is no need to additionally set a protective cover. When abnormal movement and discharging occur inside the multi-section furnace and it is necessary to urgently discharge the internal flue gas, the cylinder acts to gradually turn the flap to the fully open state. When the piston runs to the position where there is an induction signal with the magnetic ring 801, the flap is fully opened to the maximum, and the piston stops acting. When it is necessary to close the valve plate, the cylinder acts in the reverse direction, the piston returns to the position where it senses the magnetic ring 802, and the cylinder 8 stops acting, and the valve plate 3 is closed.

[0023] The above-mentioned flue gas emergency discharge device for a multi-section furnace of the present utility model realizes the function of emergency flue gas discharge, and at the same time, it is convenient for the installation and overhaul of the emergency discharge device, and saves the additional setting of a protective cover for preventing foreign objects from falling.

Claims

1. A flue gas emergency discharge device for a multi-stage furnace, comprising a valve plate installed at the top of a flue gas pipeline, a smoke exhaust port is provided at the top of the flue gas pipeline, a sealing assembly is provided around the smoke exhaust port corresponding to the valve plate, and the valve plate is hermetically installed on the upper side of the smoke exhaust port, characterized in that, The valve plate is provided with a horizontally extending flipping end on the outer side of the smoke exhaust port. A flipping support assembly is provided at a position near the smoke exhaust port on the lower side of the flipping end for rotatably supporting the valve plate. A driving component for driving the valve plate to flip and open the smoke exhaust port is provided on the lower side of the flipping end of the valve plate outside the flipping support assembly.

2. The emergency flue gas discharge device for a multi-stage furnace according to claim 1, characterized in that, The flipping support assembly includes a flipping shaft. A support seat assembly for rotatably supporting the flipping shaft is provided on the lower side of the flipping end of the valve plate. The support seat assembly includes support seats fixedly provided at positions corresponding to both ends of the flipping shaft on the lower side of the valve plate. The flipping shaft is rotatably connected to the support seats. Support rods are respectively inclined downward at the lower sides of the support seats. The lower ends of the support rods are fixed to the side wall of the flue gas duct. An ear is provided at the upper end of the support rod, and the ear is supported and connected to the flipping shaft.

3. The flue gas emergency discharge device for a multi-stage furnace according to claim 2, wherein, A fixed auxiliary support rod is further provided between the middle and upper parts of the support rod and the side wall of the flue gas duct.

4. The emergency flue gas discharge device for a multi-stage furnace according to claim 1, characterized in that, The driving component includes a cylinder. One end of the rodless end of the cylinder is supported and installed on the side wall of the flue gas duct through a hinge seat. The end of the telescopic rod of the cylinder is connected to the corresponding part of the flipping end of the valve plate through a connecting seat. A filter valve and a solenoid valve are respectively connected between the cylinder and the air supply pipeline. The solenoid valve is used to control the action of the cylinder to drive the flipping of the valve plate.

5. The flue gas emergency discharge device for a multi-stage furnace according to claim 4, characterized in that, The cylinder is supported and arranged at the central position in the width direction on the lower side of the valve plate.

6. The emergency flue gas discharge device for a multi-stage furnace according to claim 4, characterized in that A magnetic ring for sensing the position of the piston is provided on the side wall of the cylinder for limiting the opening and closing positions of the valve plate.

7. The flue gas emergency discharge device for a multi-stage furnace according to claim 1, characterized in that, A plurality of lifting lugs are provided on the periphery of the valve plate.

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