CN209618018U - A kind of pulverized coal bin fills furnace cigarette explosion-protection equipment - Google Patents

Abstract

The utility model relates to a kind of pulverized coal bins to fill furnace cigarette explosion-protection equipment, belong to pulverized coal bin equipment technical field.For solve the problem of existing pulverized coal bin due in storehouse too high oxygen level easily there is explosive event and influence normally to produce and process work and normal power supply.The utility model includes pulverized coal bin, fine powder pipe and explosion proof door are installed at the top of pulverized coal bin, and the side of pulverized coal bin is equipped with oxygen content detector, the other side is provided with stove pipe, mounting ring and closed plate are installed on stove pipe, connecting shaft is installed in closed plate, and closed plate is connect by connecting shaft with mounting ring, volute spring is equipped on the outside of connecting shaft, and connecting shaft is connect by volute spring with mounting ring；The pulverized coal bin fills furnace cigarette explosion-protection equipment, the convenient inert gas that low temperature is passed through into pulverized coal bin by stove pipe reduces the oxygen content in pulverized coal bin, to reduce the explosion probability of pulverized coal bin, certain stabilization is played, avoiding the occurrence of explosion accident influences the normal work of boiler and electricity generation system.

Description

An explosion-proof device for filling furnace smoke in pulverized coal bunker

technical field

The utility model relates to the technical field of pulverized coal bunker equipment, in particular to an explosion-proof device for filling furnace smoke in a pulverized coal bunker.

Background technique

The pulverized coal bunker is a fuel transfer station. The working conditions of the pulverized coal bunker can affect the working status of the boiler and power generation system, so it is usually necessary to protect the pulverized coal bunker, such as the Chinese patent application number 201721457456.6.

The existing pulverized coal warehouse is prone to explosion due to the high oxygen content in the warehouse, which will cause the boiler and power generation system to break down easily, affecting normal production and processing work and normal power supply. In view of the above problems, an innovative design is carried out on the basis of the original explosion-proof device.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and to provide a coal dust bin filling furnace smoke explosion-proof device to solve the problem that the existing coal dust bin proposed in the background technology is prone to Explosions will cause boilers and power generation systems to fail easily, affecting normal production and processing work and normal power supply.

The technical scheme adopted by the utility model to solve the above-mentioned problems is: an explosion-proof device for filling furnace smoke in a pulverized coal bin, including a pulverized coal bin, characterized in that: a fine powder pipe and an explosion-proof door are installed on the top of the pulverized coal bin, and An oxygen content detector is installed on one side of the pulverized coal bin, and a furnace smoke pipe is installed on the other side of the pulverized coal bin. The furnace smoke pipe is equipped with a mounting ring and a closing plate, and a connecting shaft is installed on the closing plate. And the closing plate is connected with the installation ring through the connecting shaft, and a vortex spring is installed on the outside of the connecting shaft, and the connecting shaft is connected with the installation ring through the vortex spring; the protective box is located on the other side of the pulverized coal bin, and the protective box and Furnace smoke pipes are connected with each other, and valves are installed on the furnace smoke pipes, an adjustment ring is arranged on the furnace smoke pipe, and a turbine blade is arranged on the inner side of the adjustment ring, tooth blocks are installed on the adjustment ring, and the adjustment ring A bevel gear is arranged on the outside, and the adjustment ring is in contact with the bevel gear through the gear block. A horizontal shaft is installed on the bevel gear, and the bevel gear is connected with the extrusion block through the horizontal shaft. Outside, and the water bag is located inside the protective box, the upper end and the lower end of the water bag are respectively equipped with an outlet pipe and an inlet pipe, and the water bag is connected to the coil through the outlet pipe and the water inlet pipe, and the coil is located at the bottom of the furnace smoke pipe. outside.

Preferably, the closing plate is engaged with the furnace flue pipe, and the closing plate forms a rotating structure with the mounting ring through the connecting shaft and the vortex spring.

Preferably, the axial section of the adjusting ring is an "I"-shaped structure, and the adjusting ring and the furnace smoke pipe form a rotating structure.

Preferably, the tooth blocks are equidistantly distributed on the outside of the adjustment ring, and the adjustment ring is meshed with the bevel gear through the tooth blocks.

Preferably, the extrusion block is a drop-shaped structure, and the extrusion block is fixedly connected to the horizontal shaft.

Preferably, the water bag is made of rubber, and the water bag is hot-melt connected with the coil pipe through the water outlet pipe and the water inlet pipe, and the coil pipe is spirally distributed outside the furnace smoke pipe.

The explosion-proof method of the furnace smoke explosion-proof device for the pulverized coal bunker is as follows: When the pulverized coal bunker is working, open the valve on the furnace smoke pipe, at this time, the furnace smoke pipe is fed with inert gas, and the inert gas passes through the furnace smoke pipe to push the closing plate At this time, the closing plate is rotated and opened on the furnace smoke pipe through the connecting shaft and the installation ring, and the inert gas is passed into the pulverized coal bin to reduce the oxygen content in the pulverized coal bin, thereby reducing the explosion probability of the pulverized coal bin; the staff Observe the oxygen content in the pulverized coal bin by the oxygen content detector, so as to determine whether to feed the inert gas; when it is not necessary to feed the inert gas, close the valve, at this time the closing plate loses the driving force of the inert gas, and the vortex spring passes through The connecting shaft drives the closing plate to rotate and close to prevent the gas in the pulverized coal bin from leaking out; while the inert gas passes through the furnace smoke pipe, the inert gas drives the adjustment ring to rotate on the furnace smoke pipe through the turbine blades, and the adjustment ring rotates on the furnace smoke pipe. While rotating, the adjustment ring drives the bevel gear to rotate through the tooth block, and the bevel gear drives the extrusion block to rotate through the horizontal axis while rotating, and the rotating extrusion block repeatedly squeezes the water bladder. The water in the squeezed water bag flows into the coil through the outlet pipe, and the water flows spirally outside the furnace smoke pipe along the coil, thereby cooling the inert gas in the furnace smoke pipe, and the cooled water passes through the coil and The water inlet pipe flows into the water bag 18 again to carry out the next cooling cycle.

Compared with the prior art, the utility model has the following advantages and effects:

1. It is convenient to pass low-temperature inert gas into the pulverized coal bunker through the furnace smoke pipe to reduce the oxygen content in the pulverized coal bunker, thereby reducing the explosion probability of the pulverized coal bunker, playing a certain stabilizing effect, and avoiding explosion accidents affecting the boiler and normal operation of the power generation system;

2. The closing plate is driven by the vortex spring to close the furnace smoke pipe, which is convenient for the inert gas to enter and can prevent the gas in the pulverized coal bunker from overflowing, maintaining the stability of the pressure in the pulverized coal bunker and avoiding the occurrence of air pressure. Work failure caused by instability;

3. Under the extrusion of the extrusion block, the water bag can make the water circulate in the coil, which is convenient for cooling the inert gas in the furnace smoke pipe, so as to ensure that the inert gas enters the pulverized coal bin at a low temperature.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the internal structure of the protective box in the embodiment of the utility model.

Fig. 3 is a schematic diagram of the structure of the extruded block in the embodiment of the utility model.

Fig. 4 is a schematic diagram of the installation structure of the closing plate in the embodiment of the utility model.

Fig. 5 is a schematic diagram of the connecting structure of the connecting shaft and the mounting ring in the embodiment of the utility model.

In the figure: 1. Pulverized coal bin; 2. Fine powder pipe; 3. Explosion-proof door; 4. Oxygen content detector; 5. Furnace smoke pipe; 6. Installation ring; Scroll spring; 10, protective box; 11, valve; 12, adjusting ring; 13, turbine blade; 14, gear block; 15, bevel gear; 16, transverse shaft; 17, extrusion block; 18, water bag; 19. Outlet pipe; 20. Inlet pipe; 21. Coil pipe.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the utility model and the utility model is not limited to the following examples.

Example.

Referring to Figures 1-5, the dust-filled coal bunker smoke explosion-proof device in this embodiment includes a pulverized coal bunker 1, a fine powder pipe 2 and an explosion-proof door 3 are respectively installed on the top of the pulverized coal bunker 1, and the pulverized coal bunker 1 An oxygen content detector 4 is installed on the right side, and a furnace smoke pipe 5 is arranged on the left side of the pulverized coal bin 1, and an installation ring 6 and a closing plate 7 are respectively installed on the furnace smoke pipe 5, and the closing plate 7 and the furnace smoke pipe 5 are locked. and the closing plate 7 forms a rotating structure with the mounting ring 6 through the connecting shaft 8 and the vortex spring 9, so that the closing plate 7 can be rotated and closed under the drive of the vortex spring 9, and the closing plate 7 is equipped with a connecting shaft 8 , and the closing plate 7 is connected to the mounting ring 6 through the connecting shaft 8, a vortex spring 9 is installed on the outside of the connecting shaft 8, and the connecting shaft 8 is connected to the mounting ring 6 through the vortex spring 9;

The protective box 10 is located on the left side of the pulverized coal bin 1, and the protective box 10 is connected to the furnace smoke pipe 5, and a valve 11 is installed on the furnace smoke pipe 5, and an adjusting ring 12 is arranged on the furnace smoke pipe 5, and the adjusting ring 12 Turbine blades 13 are arranged on the inner side, and the axial section of the adjustment ring 12 is an "I"-shaped structure, and the adjustment ring 12 and the furnace smoke pipe 5 form a rotating structure, which is beneficial for the adjustment ring 12 to rotate on the furnace smoke pipe 5. A tooth block 14 is installed on the adjustment ring 12, and the outside of the adjustment ring 12 is provided with a bevel gear 15, and the adjustment ring 12 is connected with the bevel gear 15 through the tooth block 14, and the tooth blocks 14 are equidistantly distributed on the outside of the adjustment ring 12 , and the adjustment ring 12 is meshed with the bevel gear 15 through the tooth block 14, so that the adjustment ring 12 drives the bevel gear 15 to rotate through the tooth block 14. The bevel gear 15 is equipped with a horizontal shaft 16, and the bevel gear 15 passes through The horizontal shaft 16 is connected with the extruding block 17, the extruding block 17 is a drop-shaped structure, and the extruding block 17 and the transverse shaft 16 are fixedly connected, which is beneficial for the extruding block 17 to squeeze the water bag 18;

Water bag 18 is positioned at the outside of extruding block 17, and water bag 18 is positioned at the inside of protective case 10, and water bag 18 is rubber material, and water bag 18 is thermally connected with coil pipe 21 by water outlet pipe 19 and water inlet pipe 20, and The coil pipe 21 is distributed in a spiral shape on the outside of the furnace smoke pipe 5, which facilitates the circulation of water. The upper end and the lower end of the water bag 18 are respectively equipped with a water outlet pipe 19 and a water inlet pipe 20, and the water bag 18 passes through the water outlet pipe 19 and the water inlet pipe. 20 is connected with the coil pipe 21, and the coil pipe 21 is located outside the furnace flue pipe 5.

Working principle: As shown in Figure 1-5, when the pulverized coal bin 1 is working, open the valve 11 on the furnace smoke pipe 5, and at this time, the furnace smoke pipe 5 is fed with inert gas, and the inert gas passes through the furnace smoke pipe 5 to push Open the closing plate 7, the closing plate 7 at this time is rotated and opened on the furnace smoke pipe 5 through the connecting shaft 8 and the installation ring 6, and the inert gas is passed into the pulverized coal bin 1 to reduce the oxygen content in the pulverized coal bin 1, and reduce the The explosion probability of the bin 1, and the staff can observe the oxygen content in the pulverized coal bin 1 through the oxygen content detector 4, which is convenient for judging whether to feed inert gas. When it is not necessary to feed inert gas, close the valve 11. The closing plate 7 loses the driving force of the inert gas, and the vortex spring 9 drives the closing plate 7 to rotate and close through the connecting shaft 8, so as to prevent the gas in the pulverized coal bin 1 from leaking out;

As shown in Figures 1-5, when the inert gas passes through the furnace smoke pipe 5, the inert gas drives the adjustment ring 12 to rotate on the furnace smoke pipe 5 through the turbine blade 13, while the adjustment ring 12 rotates, the adjustment ring 12 Drive the bevel gear 15 to rotate through the tooth block 14, and the bevel gear 15 drives the extrusion block 17 to rotate through the horizontal shaft 16 while rotating, and the rotating water drop-shaped extrusion block 17 performs the water bag 18 Repeated extrusion, the water in the squeezed water bag 18 flows into the coil 21 through the water outlet pipe 19, and the water flows spirally outside the furnace smoke tube 5 along the coil 21, which is convenient for the inert gas in the furnace smoke tube 5. Cooling is carried out, and the moisture that completes cooling flows into the water bag 18 again through the coil pipe 21 and the water inlet pipe 20, so as to facilitate the next cooling cycle, so that the smoke explosion-proof device for filling the furnace of the pulverized coal storehouse is convenient for the use of the staff.

Although the utility model is disclosed as above with the embodiment, it is not used to limit the scope of protection of the utility model. Any technical personnel familiar with the technology can make changes and modifications without departing from the concept and scope of the utility model. All should belong to the protection scope of the present utility model.

Claims (5)

1. An explosion-proof device for filling a pulverized coal bunker, comprising a pulverized coal bunker (1), characterized in that: a fine powder tube (2) and an explosion-proof door (3) are installed on the top of the pulverized coal bunker (1), In addition, an oxygen content detector (4) is installed on one side of the pulverized coal bin (1), and a furnace smoke pipe (5) is installed on the other side of the pulverized coal bin (1). Install the ring (6) and the closing plate (7), the connecting shaft (8) is installed on the closing plate (7), and the closing plate (7) is connected with the mounting ring (6) through the connecting shaft (8), the said A vortex spring (9) is installed on the outside of the connecting shaft (8), and the connecting shaft (8) is connected to the installation ring (6) through the vortex spring (9); the protective box (10) is located at the On the other side, the protective box (10) and the furnace smoke pipe (5) are connected to each other, and a valve (11) is installed on the furnace smoke pipe (5), and an adjusting ring (12) is arranged on the furnace smoke pipe (5) ), and the inside of the adjustment ring (12) is provided with a turbine blade (13), the adjustment ring (12) is equipped with a gear block (14), and the outside of the adjustment ring (12) is provided with a bevel gear (15) , and the adjustment ring (12) is in contact with the bevel gear (15) through the gear block (14), the bevel gear (15) is equipped with a cross shaft (16), and the bevel gear (15) passes through the cross shaft ( 16) Connected with the extrusion block (17), the water bag (18) is located outside the extrusion block (17), and the water bag (18) is located inside the protective box (10), the upper end of the water bag (18) The water outlet pipe (19) and the water inlet pipe (20) are respectively installed at the lower end, and the water bag (18) is connected with the coil (21) through the water outlet pipe (19) and the water inlet pipe (20), and the coil (21) is located at The outside of the furnace smoke pipe (5). 2. The explosion-proof device for filling the furnace smoke of the pulverized coal bin according to claim 1, characterized in that: the closing plate (7) is engaged with the furnace smoke pipe (5), and the closing plate (7) passes through the connecting shaft ( 8) and the vortex spring (9) and the mounting ring (6) form a rotary structure. 3. The explosion-proof device for filling furnace smoke in the pulverized coal bin according to claim 1, characterized in that: the axial section of the adjusting ring (12) is an "I"-shaped structure, and the adjusting ring (12) and the furnace smoke pipe (5) Form a rotary structure. 4. The dust explosion-proof device for filling the furnace smoke of the pulverized coal bin according to claim 1, characterized in that: the tooth blocks (14) are equally spaced outside the adjustment ring (12), and the adjustment ring (12) passes through the tooth blocks (14) is meshed with the bevel gear (15). 5. The smoke explosion-proof device for filling the pulverized coal bunker according to claim 1, characterized in that: the water bag (18) is made of rubber, and the water bag (18) passes through the water outlet pipe (19) and the water inlet pipe (20) ) is thermally fused connected with the coil pipe (21), and the coil pipe (21) is spirally distributed on the outside of the furnace smoke pipe (5).