Anti-blocking dust removal air pipe system

Abstract

The utility model relates to the field of dust removal equipment, in particular to an anti-blocking dust removal air pipe system which comprises a dust removal air pipe, one end of the dust removal air pipe is connected with a dust hood, and the other end of the dust removal air pipe is connected with a bag-type dust remover. The dust removal air pipe is obliquely arranged in the direction from the dust suction hood to the bag-type dust remover; a plurality of elastic films are laid on a bottom plate in the dust removal air pipe in the length direction of the bottom plate, the peripheries of the elastic films are connected with the bottom plate in a sealed mode, a blowing pipe is arranged at the position, located in the middle of each elastic film, of the bottom plate, the blowing pipes are connected with a pulse blowing system, exhaust pipes are further arranged on the blowing pipes, and exhaust electromagnetic valves are arranged on the exhaust pipes. According to the utility model, the dust removal air pipe is obliquely arranged, the elastic film is arranged on the bottom plate in the dust removal air pipe, and the pulse blowing system is used for blowing the elastic film, so that the elastic film intermittently expands and further pushes dust to move towards the dust remover, so that the dust is fed into the dust remover, and the dust removal air pipe can be effectively prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal equipment field especially, relates to a kind of anti-blocking dust removal air pipe systems. BACKGROUND

[0002] As commonly used environmental protection equipment, dust removal system is widely used in various industrial fields, such as flue gas purification, cement production, steel smelting, chemical processing, dust control and other fields.

[0003] The dust removal air pipe of existing dust removal system, as the connecting pipeline between dust suction point and dust collector, often has the problem of easy blockage, which will seriously affect the dust removal effect after blockage. At present, after the dust removal air pipe is blocked, manual or machine is mainly relied on to physically dredge in the pipeline, and the dust material adhered and accumulated in the pipeline is cleaned away by external force. This method has the problems of large operation difficulty, high labor intensity, time-consuming and labor-consuming, and high cleaning efficiency and cleaning cost.

[0004] Based on this, the present application provides a kind of anti-blocking dust removal air pipe system to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the technical problems existing in the prior art. To this end, the utility model provides an anti-blocking dust removal air pipe system.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] An anti-blocking dust removal air pipe system is provided, which comprises a dust removal air pipe. One end of the dust removal air pipe is connected with a dust suction cover, and the other end is connected with a bag-type dust collector. The dust removal air pipe is inclinedly arranged from the dust suction cover towards the bag-type dust collector. A plurality of elastic membranes are arranged on the bottom plate in the dust removal air pipe and are sealingly connected with the bottom plate around the periphery. A blowing pipe is arranged on the middle part of each elastic membrane on the bottom plate. The blowing pipe is connected with a pulse blowing system. An exhaust pipe is further arranged on the blowing pipe, and an exhaust electromagnetic valve is arranged on the exhaust pipe.

[0008] In some optional embodiments, the elastic membranes are fixed on the bottom plate around the periphery by pressing strips and screws. The width of the elastic membranes is equal to the width between the inner walls of the dust removal air pipe.

[0009] In some optional embodiments, the elastic membranes are integrally arranged and are divided into a plurality of units by pressing strips. A blowing pipe is arranged on the bottom plate at each unit.

[0010] In some optional embodiments, the elastic membranes are made of rubber material.

[0011] In some alternative embodiments, the pulse injection system comprises a gas tank and an electromagnetic pulse valve, each of the injection pipes is connected to the gas tank through a gas supply pipe, and the electromagnetic pulse valve is arranged on each gas supply pipe.

[0012] In some alternative embodiments, a PLC controller is further included, and the PLC controller is electrically connected to the electromagnetic pulse valve and the exhaust electromagnetic valve.

[0013] In some alternative embodiments, the electromagnetic pulse valves are controlled by the PLC controller from the high end to the low end of the dust removal air pipe in a delay mode, and the delay time of two adjacent electromagnetic pulse valves is 1-5 seconds.

[0014] In some alternative embodiments, the plurality of electromagnetic pulse valves are synchronously controlled by the PLC controller.

[0015] In some alternative embodiments, the dust removal air pipe is provided with a dust discharging box at one end close to the bag-type dust collector, the bottom of the dust discharging box is provided with a storage hopper, and the bottom of the dust discharging port of the storage hopper is provided with a dust discharging valve.

[0016] In some alternative embodiments, the outlet of the dust discharging valve is connected to the dust collecting box through a dust discharging pipe.

[0017] Compared with the prior art, the dust removal air pipe system has the following beneficial effects:

[0018] 1. The dust removal air pipe is obliquely arranged, and the elastic membrane is arranged on the bottom plate in the dust removal air pipe, the pulse injection system is used to spray the elastic membrane, the elastic membrane is intermittently expanded, the dust is pushed towards the dust collector, and then the dust is sent into the dust collector, so that the dust removal air pipe can be effectively prevented from being blocked.

[0019] 2. The dust discharging box is arranged, the dust in the dust removal air pipe can be collected and discharged, and the load of the dust collector can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 is a partial structure principle view of the anti-blocking dust removal air pipe system provided in Embodiment 1;

[0022] Figure 2 is Figure 1 a partial enlarged view provided;

[0023] Figure 3 is a structural diagram of the anti-blocking dust removal air pipe system provided in Embodiment Three.

[0024] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0025] 1 - dust removal air pipe, 2 - elastic film, 3 - blowing pipe, 4 - gas pocket, 5 - electromagnetic pulse valve, 6 - exhaust pipe, 7 - exhaust electromagnetic valve, 8 - batten, 9 - PLC controller, 10 - ash discharge box, 11 - storage hopper, 12 - ash discharge valve, 13 - ash discharge pipe, 14 - ash collection box. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are merely used to explain the present application, and are not used to limit the present application.

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0030] Embodiment One

[0031] As shown in FIG. 1, the dust removal air pipe system comprises a dust removal air pipe 1, an elastic film 2, a blowing pipe 3, a gas pocket 4, an electromagnetic pulse valve 5, an exhaust pipe 6, an exhaust electromagnetic valve 7, a batten 8, a PLC controller 9, an ash discharge box 10, a storage hopper 11, an ash discharge valve 12, an ash discharge pipe 13, and an ash collection box 14. Figure 1 and FIG. 2. Figure 2As shown, the embodiment provides a kind of anti-blocking dust removal air pipe system, including dust removal air pipe 1, elastic film 2, spray pipe 3, pulse spray system, exhaust pipe 6 and exhaust solenoid valve 7, wherein:

[0032] The one end of dust removal air pipe 1 is connected with dust cover, and the other end is connected with bag-type dust collector.Preferrably, dust removal air pipe 1 is arranged obliquely from the direction of dust cover to bag-type dust collector, which facilitates the dust accumulated in dust removal air pipe to be cleaned into dust collector.

[0033] Several elastic films 2 are laid on the bottom plate in dust removal air pipe 1 along the length direction, and the periphery of elastic film 2 is sealed to the bottom plate.Specifically, the periphery of elastic film 2 is fixed to the bottom plate by pressing strip 8 and screw, and the width of elastic film 2 is equal to the width between the inner wall of dust removal air pipe, and elastic film 2 can be made of rubber material.The middle part of bottom plate in each elastic film 2 is provided with spray pipe 3, and spray pipe 3 is connected with pulse spray system, and high pressure air is sprayed by pulse spray system to make elastic film expand.Exhaust pipe 6 is also provided on spray pipe 3, which is used to exhaust the air in the inner cavity of elastic film to reset, and exhaust solenoid valve 7 is provided on exhaust pipe 6, which is normally closed valve, and exhaust operation is controlled by exhaust solenoid valve.

[0034] Preferrably, pulse spray system includes air bag 4 and electromagnetic pulse valve 5, and each spray pipe 3 is connected with air bag 4 through gas supply pipe, and electromagnetic pulse valve 5 is arranged on each gas supply pipe.Pulse spray system can refer to the pulse dust removal principle of bag-type dust collector, which is not described here.

[0035] When cleaning the dust in dust removal air pipe, electromagnetic pulse valve is controlled to act (exhaust solenoid valve is closed), and high pressure gas in air bag enters elastic film to make elastic film expand, which vibrates the dust adhered to elastic film.Because dust removal air pipe is arranged obliquely, dust moves along dust removal air pipe to dust collector, and before the next action of electromagnetic pulse valve, exhaust solenoid valve is controlled to open to exhaust the air in elastic film, and then electromagnetic pulse valve is controlled to act to continue to spray high pressure air into elastic film, so as to realize the dust in dust removal air pipe to be exhausted into dust collector.

[0036] The above control can be controlled by PLC controller 9.Specifically, electromagnetic pulse valve 5 can be controlled by PLC controller 9 from high end to low end of dust removal air pipe 1, and the delay time of adjacent two electromagnetic pulse valves is 1-5 seconds, or all electromagnetic pulse valves can be controlled to act synchronously by PLC controller 9.

[0037] It is worth mentioning that pulse spray system can be controlled to start periodically to clean dust removal air pipe when dust collector is running.

[0038] Embodiment two

[0039] The only difference from Embodiment 1 is the installation structure of the elastic membrane. In this embodiment, the elastic membrane 2 is a single piece, divided into multiple units by pressure strips 8, and a blowpipe 3 is provided on the base plate at each unit.

[0040] Example 3

[0041] Based on Example 1 or Example 2, as shown in the appendix Figure 3 As shown, this embodiment further includes an ash discharge box 10, a storage hopper 11, an ash discharge valve 12, an ash discharge pipe 13, and an ash collection box 14. The ash discharge box 10 is located at one end of the dust removal duct 1 near the dust collector. The bottom of the ash discharge box 10 has a storage hopper 11 for storing a certain amount of dust. An ash discharge valve 12 is located at the bottom discharge port of the storage hopper 11 for discharging dust. Preferably, the outlet of the ash discharge valve 12 is connected to the ash collection box 14 via the ash discharge pipe 13. The ash discharge pipe is preferably a corrugated pipe, and the ash collection box receives the discharged dust. This embodiment can utilize the storage hopper of the ash discharge box to trap some of the cleaned dust, reducing the load on the dust collector.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust removal air pipe system against blockage, comprising a dust removal air pipe, one end of which is connected with a dust suction cover and the other end of which is connected with a bag-type dust collector, characterized in that: the dust removal air pipe is arranged obliquely from the dust suction cover to the bag-type dust collector; a plurality of elastic membranes are arranged on a bottom plate in the dust removal air pipe and are sealed to the bottom plate around the periphery; a blowing pipe is arranged on the middle part of each elastic membrane on the bottom plate; the blowing pipe is connected with a pulse blowing system; an exhaust pipe is further arranged on the blowing pipe; and an exhaust electromagnetic valve is arranged on the exhaust pipe. The periphery of each elastic membrane is fixed to the bottom plate by a pressing strip and a screw; the width of the elastic membrane is equal to the width between the inner walls of the dust removal air pipe. The elastic membrane is an integral whole, which is divided into a plurality of units by the pressing strip; and a blowing pipe is arranged on the bottom plate at each unit.

2. The anti-blocking dust removal air duct system according to claim 1, characterized in that: The elastic membrane is made of rubber.

3. The anti-blocking dust removal air duct system according to claim 1, characterized in that: The pulse blowing system comprises a gas tank and an electromagnetic pulse valve; each blowing pipe is connected with the gas tank through a gas supply pipe; and the electromagnetic pulse valve is arranged on each gas supply pipe.

4. The anti-blocking dust removal air duct system according to claim 1, characterized in that: A PLC controller is further arranged, which is electrically connected with the electromagnetic pulse valve and the exhaust electromagnetic valve.

5. The anti-blocking dust removal air duct system according to claim 1, characterized in that: The electromagnetic pulse valves are controlled by the PLC controller from the high end to the low end of the dust removal air pipe with a delay of 1-5 seconds between two adjacent electromagnetic pulse valves.

6. The anti-blocking dust removal air duct system according to claim 5, characterized in that: The plurality of electromagnetic pulse valves are synchronously controlled by the PLC controller.

7. The anti-blocking dust removal air duct system according to claim 6, characterized in that: An ash discharge box is further arranged at the end of the dust removal air pipe close to the bag-type dust collector; a storage hopper is arranged at the bottom of the ash discharge box; and a dust unloading valve is arranged on the ash discharge port at the bottom of the storage hopper.

8. The anti-blocking dust removal air duct system according to claim 6, characterized in that: The outlet of the dust unloading valve is connected with a dust collecting box through a dust discharge pipe.

9. The anti-clogging dust-removal air duct system according to any one of claims 1 to 8, characterized in that: ​ 10. The anti-blocking dust removal air duct system according to claim 9, characterized in that: ​

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