Large-space heat preservation device for ash bucket of electric dust remover
By setting up a large space insulation chamber and a double-layer insulation material structure on the electrostatic precipitator hopper, the problem of poor insulation effect of the hopper is solved, efficient insulation is achieved, power consumption and maintenance workload are reduced, and equipment stability is improved.
Patent Information
- Application Number
- CN202422479599.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The existing electrostatic precipitator ash hopper has poor insulation effect, which leads to lower ash temperature, poor fluidity, and easy ash blockage, affecting the safety and stable operation of the equipment. In addition, the electric heating and insulation device has high power consumption and a complex system.
It adopts a large space insulation chamber and a double-layer insulation material structure, including an inner insulation layer, an outer insulation layer and an air insulation layer. Through the insulation effect of the inner and outer air layers, the electric heating device is eliminated to achieve efficient insulation.
It greatly reduces the power consumption of low-voltage operation of the equipment and the workload of inspection and maintenance, improves the stability of equipment operation, and is simple to transform and has wide adaptability.
Smart Images
Figure CN223393599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to a large-space heat preservation device for an electrostatic precipitator ash hopper. Background Art
[0002] Electrostatic precipitators have the advantages of high dust removal efficiency, low flue gas resistance, and large flue gas processing capacity. Recently, due to the domestic coal-fired sludge mixed combustion flue gas, steel plant sintering machine heads, papermaking alkali furnaces, etc., the electrostatic precipitators generally have the problem of ash hopper blockage. Among them, after the sludge is mixed with the coal-fired power plant, the water content in the flue gas increases significantly, the viscosity of the ash increases, and the dust separated by the electrostatic precipitator is very easy to bridge and compact in the ash hopper, and the fluidity of the ash is reduced, resulting in difficulty in unloading the ash hopper or even ash blockage, affecting the safe and stable operation of the electrostatic precipitator.
[0003] Due to the poor thermal insulation effect of the ash hopper, the ash hopper of the existing electrostatic precipitator is usually equipped with electric heating as the ash hopper heating to prevent the ash temperature from decreasing and the fluidity from decreasing, which may cause the ash hopper to become blocked. When using electric heating, each ash hopper consumes about 5-20kW of electricity. The power consumption of the electrostatic precipitator equipped with a 1000MW unit is about 300-1200kW, which leads to high power consumption and complex system. Summary of the Invention
[0004] The purpose of the utility model is to solve the problems in the prior art and propose a large-space insulation device for the ash hopper of the electrostatic precipitator, which can eliminate the heating and insulation device of the ash hopper of the electrostatic precipitator, greatly reduce the low-voltage operation power consumption and maintenance workload of the equipment, have wide adaptability to the modification of existing equipment, and improve the operation stability of the equipment.
[0005] To achieve the above-mentioned purpose, the utility model proposes a large-space insulation device for an electrostatic precipitator ash hopper, comprising a large-space insulation chamber and an ash hopper located in the large-space insulation chamber, wherein the outer side surface of the ash hopper is provided with an inner insulation layer, a first air insulation layer, an outer insulation layer, a second air insulation layer and a protective layer in sequence from the inside to the outside.
[0006] Preferably, a reinforcing net is provided on the outer side of the inner insulation layer, an inner pull rod with a free end extending into the first air insulation layer is provided on the ash hopper, and a self-locking pressing piece for pressing the reinforcing net is provided on the inner pull rod.
[0007] Preferably, the ash hopper is provided with a support body with a free end extending into the second air insulation layer, and the support body is provided with two connectors, and the two connectors respectively support the outer insulation layer and the protective layer.
[0008] Preferably, the overlapping parts of the protective layers are fixed to the corresponding connectors by rivets.
[0009] Preferably, the ash hopper is provided with an outer pull rod with a free end extending into the second air insulation layer, and the outer pull rod is provided with a self-locking pressing piece for pressing the outer insulation layer.
[0010] Preferably, the output end of the ash hopper extends out of the large space insulation chamber and is provided with two symmetrically arranged ash hopper gasification devices.
[0011] Preferably, the inner thermal insulation layer is composed of two layers of thermal insulation material stacked in double layers.
[0012] Preferably, the outer insulation layer is a thermal insulation composite board.
[0013] Preferably, the protective layer is a trapezoidal corrugated board.
[0014] Preferably, the large-space insulation chamber is a double-layer structure, including an outer layer of trapezoidal corrugated board and an inner layer of insulation cotton.
[0015] The beneficial effects of the utility model are as follows: the utility model realizes efficient insulation of the ash hopper of the electrostatic precipitator through a large-space insulation chamber, double-layer insulation material and double-layer air insulation. Compared with the existing technology, the heating and insulation device of the ash hopper of the electrostatic precipitator can be eliminated, which greatly reduces the low-voltage operation power consumption and inspection and maintenance workload of the equipment. It has wide adaptability to the transformation of existing equipment and improves the operation stability of the equipment.
[0016] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural diagram of a large-space heat preservation device for an electrostatic precipitator hopper according to the present invention;
[0018] Figure 2 yes Figure 1 Cross-sectional view of AA in the figure.
[0019] In the figure: 1-large space insulation chamber, 2-inner insulation layer, 3-first air insulation layer, 4-outer insulation layer, 5-second air insulation layer, 6-protective layer, 7-reinforcement net, 8-inner pull rod, 9-self-locking pressing sheet, 10-ash hopper, 11-support body, 12-connector, 13-outer pull rod, 14-ash hopper gasification device. DETAILED DESCRIPTION
[0020] See Figure 1 、 2 The utility model provides a large-space insulation device for an electrostatic precipitator ash hopper, comprising a large-space insulation chamber 1 and an ash hopper 10 located in the large-space insulation chamber 1. The outer side of the ash hopper 10 is provided with an inner insulation layer 2, a first air insulation layer 3, an outer insulation layer 4, a second air insulation layer 5 and a protective layer 6 in sequence from the inside to the outside.
[0021] A reinforcing net 7 is provided on the outer side of the inner insulation layer 2 , an inner pull rod 8 with a free end extending into the first air insulation layer 3 is provided on the ash hopper 10 , and a self-locking pressing piece 9 for pressing the reinforcing net 7 is provided on the inner pull rod 8 .
[0022] The ash hopper 10 is provided with a support body 11 with a free end extending into the second air insulation layer 5. The support body 11 is provided with two connectors 12, and the two connectors 12 respectively support the outer insulation layer 4 and the protective layer 6.
[0023] The overlapping parts of the protective layer 6 are fixed to the corresponding connecting body 12 by rivets.
[0024] The ash hopper 10 is provided with an outer layer pull rod 13 with a free end extending into the second air insulation layer 5 , and the outer layer pull rod 13 is provided with a self-locking pressing piece 9 for pressing the outer insulation layer 4 .
[0025] The output end of the ash hopper 10 extends out of the large space insulation chamber 1 and is provided with two symmetrically arranged ash hopper gasification devices 14 .
[0026] The inner thermal insulation layer 2 is composed of two layers of thermal insulation materials stacked in double layers.
[0027] The outer thermal insulation layer 4 is a thermal insulation composite board.
[0028] The protective layer 6 is a trapezoidal corrugated board.
[0029] The large-space insulation chamber 1 is a double-layer structure, including an outer layer of trapezoidal corrugated board and an inner layer of insulation cotton.
[0030] Working process of this utility model:
[0031] The utility model discloses a large-space heat preservation device for an electrostatic precipitator hopper. During operation, the heat preservation effect of stagnant air is fully utilized while using less material through two layers of inner and outer heat preservation materials and two layers of inner and outer air heat preservation layers. Under the condition of optimal temperature gradient setting, the heat preservation effect is greatly improved.
[0032] The inner insulation layer 2 is fixed by the inner pull rod 8, the self-locking pressure plate 9 and the reinforcing net 7, the outer insulation layer 4 is fixed by the outer pull rod 13 and the self-locking pressure plate 9, the outer insulation layer 4 and the protective layer 6 are fixed on the ash hopper 10 by the support body 11 and the connector 12, and the entire insulation structure is structurally protected by the trapezoidal corrugated board to prevent rainwater from entering the insulation structure.
[0033] A large air layer is formed between the large-space insulation chamber 1 and the ash hopper 10, and the air therein is in a stagnant state.
[0034] The modification of existing electrostatic precipitators is simple, requiring only the modification of the ash hopper insulation device. The modification cost is low, the construction period is short, the modification adaptability is good, and it has market potential for large-scale promotion and application.
[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.
Claims
1. A large space heat preservation device for an electrostatic precipitator hopper, characterized by: The invention comprises a large-space heat preservation chamber (1) and an ash hopper (10) located in the large-space heat preservation chamber (1), wherein the outer side surface of the ash hopper (10) is provided with an inner heat preservation layer (2), a first air heat preservation layer (3), an outer heat preservation layer (4), a second air heat preservation layer (5) and a protective layer (6) in sequence from the inside to the outside.
2. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: A reinforcing net (7) is provided on the outer side of the inner thermal insulation layer (2), an inner pull rod (8) with a free end extending into the first air thermal insulation layer (3) is provided on the ash hopper (10), and a self-locking pressing piece (9) for pressing the reinforcing net (7) is provided on the inner pull rod (8).
3. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The ash hopper (10) is provided with a support body (11) whose free end extends into the second air insulation layer (5). The support body (11) is provided with two connectors (12), and the two connectors (12) respectively support the outer insulation layer (4) and the protective layer (6).
4. The large space heat preservation device for an electrostatic precipitator hopper according to claim 3, characterized in that: The overlapping parts of the protective layer (6) are fixed to the corresponding connecting body (12) by rivets.
5. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The ash hopper (10) is provided with an outer layer pull rod (13) whose free end extends into the second air insulation layer (5), and the outer layer pull rod (13) is provided with a self-locking pressing piece (9) for pressing the outer layer insulation layer (4).
6. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The output end of the ash hopper (10) extends out of the large-space insulation chamber (1) and is provided with two symmetrically arranged ash hopper gasification devices (14).
7. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The inner thermal insulation layer (2) is composed of two layers of thermal insulation material stacked in double layers.
8. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The outer thermal insulation layer (4) is a thermal insulation composite board.
9. The large space heat preservation device for an electrostatic precipitator hopper according to claim 1, characterized in that: The protective layer (6) is a trapezoidal corrugated board.
10. A large space heat preservation device for an electrostatic precipitator hopper according to any one of claims 1 to 9, characterized in that: The large-space insulation chamber (1) is a double-layer structure, comprising an outer layer of trapezoidal corrugated board and an inner layer of insulation cotton.