A negative pressure high temperature resistant slag and dust collector device for thermal power plants

Abstract

The present invention relates to the technical field of slag removal in thermal power plants, and in particular to a negative pressure, high temperature resistant slag removal and dust removal device for thermal power plants, comprising a dust removal assembly, including a structural member, a separation member arranged in the structural member, an anti-blocking member arranged in the structural member, and a discharge assembly, including a discharge member arranged on the inner side of the structural member, and a discharge member arranged on the inner side of the discharge member. The present invention utilizes an electrostatic precipitator and an induced draft fan to be put into operation when the thermal power plant is in operation, the induced draft fan generates negative pressure, and the electrostatic precipitator removes fine dust. The slag removal and dust removal device has the characteristics of large processing capacity, high temperature resistance, a wide range of slag dust particle sizes, a wide operating radius, etc., and the device itself has no dust suction motor, and the filter does not need to be replaced, etc., and the maintenance cost is extremely low. At the same time, the set discharge assembly can facilitate intermittent discharge of slag according to needs, and facilitates cooling of high-temperature slag during discharge, reducing the possibility of danger caused by excessive slag temperature in subsequent slag removal processes.

Description

Technical Field

[0001] The present invention relates to the technical field of slag removal in thermal power plants, in particular to a negative pressure high temperature resistant slag removal and dust removal device in thermal power plants. Background Art

[0002] The environmental protection requirements of thermal power plants are becoming increasingly stringent. Dust and high-temperature slag at the work site must be strictly controlled to ensure the work site environment and safety. The industrial vacuum cleaners currently on the market are expensive and have high maintenance costs, which is mainly reflected in the high frequency of filter replacement and the motor is prone to failure after long-term operation. Currently, the market is basically a general-purpose industrial vacuum cleaner, and there is no vacuum cleaner specifically designed for the slag and dust characteristics of thermal power plants. The general industrial vacuum cleaners on the market have limited processing capacity and are insufficient to meet the slag and dust removal requirements of thermal power plants. At the same time, the slag temperature is high during the slag removal process, and the slag contains incompletely burned carbon. The dust collection box of a general industrial vacuum cleaner has the risk of re-ignition, and then overheating and burning the vacuum cleaner. If manual digging is used at this time, there is a risk of scalding personnel, and the manual slag digging operation radius is limited, and the efficiency is low. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] The present invention is proposed in view of the problems that arise during the use of the above-mentioned slag removal device.

[0005] Therefore, the object of the present invention is to provide a negative pressure high temperature resistant slag and dust collector device for a thermal power plant.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a dust removal assembly, including a structural member, a separation member arranged in the structural member, and an anti-blocking member arranged in the structural member.

[0007] The discharge assembly includes a discharge member arranged on the inner side of the structural member, a discharge member arranged on the inner side of the discharge member, an alarm member arranged on the inner side of the structural member, and a slag collecting member arranged on one side of the structural member;

[0008] The structural component includes a dust conveying pipeline, an air preheater electrostatic precipitator interface arranged on one side of the dust conveying pipeline, and a metal hose arranged on the other side of the dust conveying pipeline;

[0009] The separation element comprises a slag dust gas separator arranged inside the dust conveying pipeline and a slag dust deceleration separation zone arranged inside the dust conveying pipeline.

[0010] As an optimal solution of the negative pressure high temperature resistant slag removal and dust removal device for thermal power plants described in the present invention, the structural components include a pneumatic gate valve arranged on one side of the dust conveying pipeline, a replaceable slag removal port arranged on one side of the metal hose, and an anti-scalding handle arranged on the upper side of the replaceable slag removal port.

[0011] As a preferred embodiment of the negative pressure high temperature resistant slag and dust removal device for a thermal power plant according to the present invention, the separator further comprises a slag and dust depth separator arranged in the dust conveying duct, the slag and dust gas separator is rhombus-shaped and the length of the inclined surface on the side facing the airflow is greater than the length of the inclined surface on the side facing away from the airflow;

[0012] The separator also includes an inlet channel arranged on one side of the slag-dust depth separator and an outflow channel arranged on the other side of the slag-dust depth separator.

[0013] As a preferred embodiment of the negative pressure high temperature resistant slag and dust collector device for a thermal power plant according to the present invention, the anti-blocking member comprises a compressed air pipe arranged on one side of the dust conveying pipe, a second pneumatic gate valve arranged on one side of the compressed air pipe, and a cover plate hingedly arranged on one side of the compressed air pipe;

[0014] The blowing direction of one end of the compressed air pipeline extending into the dust conveying pipeline is directly facing one side of the slag-dust depth separator.

[0015] As a preferred solution of the negative pressure high temperature resistant slag and dust collector device for thermal power plants described in the present invention, the discharge member includes a discharge pipe fixedly connected to one side of the dust conveying pipeline and a pneumatic gate valve three arranged on one side of the discharge pipe.

[0016] As a preferred embodiment of the negative pressure high temperature resistant slag and dust collector device for thermal power plants of the present invention, the discharge member includes a chute provided on one side of the discharge pipe, a slide rod provided inside the chute, a slide plate slidably provided on the outside of the slide rod, a baffle plate hingedly provided on one side of the slide plate, and a compression spring sleeved on the outside of the slide rod;

[0017] The two ends of the compression spring are respectively connected to the side wall of the sliding plate and the inner bottom wall of the sliding groove.

[0018] As a preferred solution of the negative pressure high temperature resistant slag and dust collector device for thermal power plants described in the present invention, the discharge part also includes a limit block arranged on the other side of the baffle plate, a groove opened on one side of the discharge pipe, and an inclined portion arranged at the bottom of the groove, and the limit block extends into the groove and is slidably arranged with it.

[0019] As a preferred embodiment of the negative pressure high temperature resistant slag and dust collector device for a thermal power plant according to the present invention, the discharge member further comprises limiting grooves provided on both sides of the channel, mounting grooves provided on both sides of the limiting groove, a protrusion slidably provided on the inner side of the mounting groove, a return spring provided on the inner side wall of the mounting groove, and an arc-shaped top block provided on the inner bottom wall of the limiting groove, wherein the protrusion extends into the limiting groove and is slidably provided therewith;

[0020] The discharging member further includes a second return spring arranged on one side of the baffle plate, and the other end of the second return spring is connected to the side wall of the discharge pipe 201a.

[0021] As a preferred embodiment of the negative pressure high temperature resistant slag and dust collector device for a thermal power plant according to the present invention, the alarm component comprises a material level alarm 1 provided on one side of the discharge pipe, a temperature measuring point provided on one side of the discharge pipe, and a material level alarm 2 provided on one side of the discharge pipe;

[0022] The alarm component also includes a fire steam port arranged on one side of the slag dust gas separator and an exhaust hole opened on the lower side of the slag dust gas separator.

[0023] As a preferred solution of the negative pressure high temperature resistant slag and dust collector device for thermal power plants described in the present invention, the slag collecting part includes a slag and dust box arranged on one side of the discharge pipe, a base arranged on one side of the slag and dust box, and a sealing plate arranged on one side of the slag and dust box.

[0024] Beneficial effects of the present invention: The present invention designs a slag removal and dust removal device that is connected after the air preheater and before the electrostatic precipitator according to the characteristics of slag dust in thermal power plants. When the thermal power plant is in operation, the electrostatic precipitator and the induced draft fan are put into operation, the induced draft fan generates negative pressure, and the electrostatic precipitator removes fine dust. The slag removal and dust removal device has the characteristics of large processing capacity, high temperature resistance, wide range of slag dust particle size processing, wide operating radius, etc., and the device itself has no dust suction motor, and the filter does not need to be replaced, etc., and the maintenance cost is extremely low. At the same time, the set discharging component can facilitate intermittent discharging of the slag according to needs, and facilitates cooling of the high-temperature slag during discharging, reducing the possibility of danger caused by excessive slag temperature in the subsequent slag removal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0026] Figure 1 The figure is a schematic diagram of the overall structure of the negative pressure high temperature resistant slag and dust collector device for thermal power plants according to the present invention.

[0027] Figure 2 It is a structural schematic diagram of the slag dust gas separator in the present invention.

[0028] Figure 3 It is a cross-sectional view of the slag-dust depth separator in the present invention.

[0029] Figure 4 It is a structural schematic diagram of the discharge piece in the present invention.

[0030] Figure 5 It is a structural schematic diagram of the material baffle in the present invention.

[0031] Figure 6 for Figure 5 Enlarged view of the structure at point B in the middle.

[0032] Figure 7 It is a structural schematic diagram of the limit block in the present invention.

[0033] Figure 8 Schematic diagram of the structure of the channel in the present invention.

[0034] Figure 9 for Figure 8 Enlarged view of the structure at point C in the middle.

[0035] Figure 10 for Figure 1 A magnified view of the structure at center A. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0039] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0040] Example 1

[0041] Reference Figure 1-Figure 3 , provides an overall structural schematic diagram of a negative pressure, high temperature resistant slag removal and dust removal device for a thermal power plant, a negative pressure, high temperature resistant slag removal and dust removal device for a thermal power plant includes a dust removal component 100, including a structural member 101, a separation member 102 arranged in the structural member 101, and an anti-blocking member 103 arranged in the structural member 101.

[0042] The discharge assembly 200 includes a discharge member 201 disposed inside the structural member 101, a discharge member 202 disposed inside the discharge member 201, an alarm member 203 disposed inside the structural member 101, and a slag collecting member 204 disposed on one side of the structural member 101;

[0043] Structural component 101 includes a dust conveying duct 101a, an air preheater electrostatic precipitator interface 101b provided on one side of the dust conveying duct 101a, and a metal hose 101c provided on the other side of the dust conveying duct 101a. The metal hose 101c is made of high-temperature resistant material to expand the working space and adapt to various working environments. The air preheater electrostatic precipitator interface 101b is used to connect to the air and smoke system of the thermal power plant, using the negative pressure generated by the induced draft fan of the thermal power plant's original system to absorb slag dust and remove various dusts through the electrostatic precipitator.

[0044] The separation element 102 includes a slag dust gas separator 102a provided inside the dust conveying duct 101a and a slag dust deceleration separation zone 102b provided inside the dust conveying duct 101a.

[0045] Specifically, the structural component 101 includes a pneumatic gate valve 101d arranged on one side of the dust conveying pipe 101a. The pneumatic gate valve 101d is used to isolate the slag removal and dust removal device from the power plant's air and smoke system, which is convenient for maintaining the slag removal and dust removal device. A replaceable slag removal port 101e is arranged on one side of the metal hose 101c. The replaceable slag removal port 101e can be selected from dust suction ports, pointed ports, wide ports, expanded ports, etc., which are selected according to the characteristics of absorbing slag and dust. An anti-scalding handle 101f is arranged on the upper side of the replaceable slag removal port 101e. The anti-scalding handle 101f can be held by hand or clamped with tools, which is convenient for placing in high-temperature and narrow environments.

[0046] Furthermore, the separation element 102 also includes a slag dust depth separator 102c arranged in the dust conveying pipe 101a. The slag dust gas separator 102a is rhombus-shaped and the length of the right hypotenuse is greater than the length of the left oblique surface. When the slag dust mixture enters, the blunt body separator blocks the disturbed airflow and initially separates the slag dust. The heavy ones fall into the discharge pipe 201a, and the light ones continue to flow backward. The slag dust deceleration separation zone 102b generates a reflux zone behind the blunt body separator in the flow direction of the slag dust mixture to further separate the slag dust.

[0047] Specifically, the separation element 102 also includes an inlet channel 102d arranged on one side of the slag-dust depth separator 102c and an outflow channel 102e arranged on the other side of the slag-dust depth separator 102c. The inlet channel 102d is an arc-shaped channel and a slag discharge port is provided on the lower side. The outflow channel 102e is obliquely arranged on one side of the inlet channel 102d. The inlet channel 102d and the outflow channel 102e form a Y-shaped channel. When slag-containing air enters through the upper inlet of the upper inlet channel 102d, the heavier slag will be discharged through the slag discharge port on the lower side of the inlet channel 102d, and the lighter dust-containing air will be discharged through the outflow channel 102e through the negative pressure in the pipeline, thereby realizing the final step of separation of slag and dust.

[0048] Preferably, the anti-blocking member 103 includes a compressed air pipe 103a provided on one side of the dust conveying pipe 101a for conveying compressed air, a pneumatic gate valve 103b provided on one side of the compressed air pipe 103a, and a cover plate 103c hingedly provided on one side of the compressed air pipe 103a. The blowing direction of one end of the compressed air pipe 103a extending into the dust conveying pipe 101a is facing one side of the slag dust depth separator 102c. When the slag dust depth separator 102c is blocked, the negative pressure of the slag dust deceleration separation zone 102b is insufficient. When the pneumatic gate valve 103b is opened, compressed air is introduced to perform pulse blowing on the slag dust depth separator 102c until the negative pressure in the slag dust deceleration separation zone 102b is restored, indicating that the slag dust depth separator 102c is unblocked. A hinge is provided on one side of the cover plate 103c. Under normal circumstances, the cover plate 103c closes the outlet of the compressed air pipe 103a to prevent slag dust from entering the compressed air pipe 103a and blocking the pipe. When the pneumatic gate valve 103b is opened, the compressed air will push open the hinged cover plate 103c.

[0049] Operation process: When in use, the air preheater electrostatic precipitator interface 101b is used to connect with the wind and smoke system of the thermal power plant, and the negative pressure generated by the original system induced draft fan of the thermal power plant is used to absorb the slag dust. Then, a suitable slag suction port is selected at the other end of the dust conveying pipe 101a and fixedly installed with the metal hose 101c to start slag suction. When the slag-dust mixture enters the dust conveying pipe 101a, the blunt body separator blocks the disturbed airflow and initially separates the slag dust. The heavy ones fall into the discharge pipe 201a, and the light ones continue to flow backward. The slag dust deceleration separation zone 102b, in the flow direction of the slag-dust mixture, a reflux zone is generated behind the blunt body separator, further separating the slag dust. The separated slag-containing air enters the inlet channel 102d on one side of the slag-dust depth separator 102c, and the heavier slag will be discharged through the slag discharge port on the lower side of the inlet channel 102d, and the lighter dust-containing air will be discharged through the outflow channel 102e due to the negative pressure in the pipeline, thereby realizing the final step of separation of the slag dust.

[0050] When the slag dust depth separator 102c is blocked and the negative pressure in the slag dust deceleration separation zone 102b is insufficient, the pneumatic gate valve 2 103b is controlled to open, and compressed air is introduced to perform pulse blowing on the slag dust depth separator 102c until the negative pressure in the slag dust deceleration separation zone 102b is restored, indicating that the slag dust depth separator 102c is unblocked. A hinge is provided on one side of the cover plate 103c. Under normal circumstances, the cover plate 103c closes the outlet of the compressed air pipe 103a to prevent slag dust from entering the compressed air pipe 103a and blocking the pipe. When the pneumatic gate valve 2 103b is opened, the compressed air will push open the hinged cover plate 103c.

[0051] Example 2

[0052] Reference Figure 4-Figure 9 This embodiment is different from the first embodiment in that the discharge member 201 includes a discharge pipe 201a fixedly connected to one side of the dust conveying pipe 101a and a pneumatic gate valve 201b provided on one side of the discharge pipe 201a.

[0053] Specifically, the discharge member 202 includes a chute 202a opened on one side of the discharge pipe 201a, a slide rod 202b arranged on the inner side of the chute 202a, a sliding plate 202c slidably arranged on the outside of the slide rod 202b, a baffle plate 202d hingedly arranged on one side of the sliding plate 202c and a compression spring 202e sleeved on the outside of the slide rod 202b, the two ends of the compression spring 202e are respectively connected to the side wall of the sliding plate 202c and the inner bottom wall of the chute 202a, the compression spring 202e is used to reset the sliding plate 202c, and the baffle plate 202d can be rotated on the side wall of the sliding plate 202c, and the baffle plate 202d is used to block and collect the slag.

[0054] Preferably, the discharge member 202 further includes a limit block 202f arranged on the other side of the baffle plate 202d, a groove 202g opened on one side of the discharge pipe 201a, and an inclined portion 202h arranged at the bottom of the groove 202g. A wedge portion is provided on one side of the limit block 202f. When the limit block 202f slides down, the inclined portion 202h will contact the inclined portion 202h at the bottom of the groove 202g, and the limit block 202f extends into the groove 202g and slides with it. When the baffle plate 202d slides downward, the limit block 202f will also slide with it. When it slides to the bottom, the inclined portion 202h on one side of the limit block 202f will contact the inclined portion 202h at the bottom of the groove 202g, releasing the limit, so that the baffle plate 202d flips downward.

[0055] Specifically, the discharge piece 202 also includes a limiting groove 202i provided on both sides of the groove 202g, a mounting groove 202j provided on both sides of the limiting groove 202i, a protrusion 202k slidably provided on the inner side of the mounting groove 202j, a return spring 202l provided on the inner side wall of the mounting groove 202j, and an arc-shaped top block 202m provided on the inner bottom wall of the limiting groove 202i. The arc-shaped top block 202m is used to squeeze the protrusion 202k to press it into the mounting groove 202j. The two ends of the return spring 202l are respectively connected to the inner side wall of the mounting groove 202j and the side wall of the protrusion 202k. The return spring 202l is used to reset the protrusion 202k. The protrusion 202k extends into the limiting groove 202i and is connected to it. When the slag is accumulated on the baffle plate 202d and reaches a certain weight, the baffle plate 202d and the sliding plate 202c are squeezed to make them slide downward in the chute 202a and the channel 202g. When the baffle plate 202d slides to the bottom of the limit groove 202i, the convex block 202k is pushed out of the limit groove 202i by the force of the arc-shaped top block 202m. At this time, the baffle plate 202d loses the limiting force of the limit groove 202i on it, and the baffle plate 202d rotates downward to discharge the material.

[0056] The discharging member 202 also includes a return spring 202n arranged on one side of the baffle plate 202d, the other end of the return spring 202n being connected to the side wall of the discharge pipe 201a, and the return spring 202n is used to return the baffle plate 202d to its original position. When the slag on the upper side of the baffle plate 202d is discharged, the return spring 202n loses its squeezing force, driving the baffle plate 202d to return to its original position and rotate so that the baffle plate 202d is back to a horizontal state. At this time, the limit block 202f re-extends into the groove 202g, and the lifting plate is driven by the return force of the compression spring 202e to drive the baffle plate 202d and the limit block 202f to return to slide upward. During the sliding process, the protrusion 202k is re-extended into the limit groove 202i by the force of the return spring 1 202l to limit it, and the next slag discharge operation begins.

[0057] The rest of the structure is the same as that of Example 1.

[0058] Operation process: After the slag falls into the discharge pipe 201a through the dust conveying pipe 101a, it will first fall on the baffle plate 202d. When there is too much slag accumulated on the baffle plate 202d, the baffle plate 202d and the sliding plate 202c are squeezed to make it slide downward in the slide groove 202a and the channel 202g. When it slides to the bottom of the limit groove 202i, the protrusion 202k is pushed out of the limit groove 202i by the force of the arc-shaped top block 202m. At the same time, the inclined portion 202h of the limit block 202f contacts the inclined portion 202h of the channel 202g. At this time, the baffle plate 202d loses the limiting force of the limit groove 202i on it, and the baffle plate 202d rotates downward for discharge processing.

[0059] When the slag on the upper side of the baffle plate 202d is discharged, the reset spring 202n loses its squeezing force, driving the baffle plate 202d to reset and rotate so that the baffle plate 202d is in a horizontal state again. At this time, the limit block 202f re-extends into the groove 202g, and the lifting plate is driven by the reset force of the compression spring 202e to drive the baffle plate 202d and the limit block 202f to reset and slide upward. During the sliding process, the protrusion 202k is re-extended into the limit groove 202i by the force of the reset spring 202l to limit it, and the next slag discharge operation begins.

[0060] Example 3

[0061] Reference Figures 1-10 , this embodiment is different from the above embodiment in that: the alarm component 203 includes a material level alarm 203a provided on one side of the discharge pipe 201a, and a temperature measuring point 203b provided on one side of the discharge pipe 201a. The working principle of the material level alarm is that a small motor drives the rotating shaft and the square iron sheet fixed on the rotating shaft to rotate continuously. When the slag dust level is high, the iron sheet is hindered from rotating. When the rotary material level alarm is detected to be not rotating, a high material level alarm is issued. When the material level alarm 203a is triggered, a high material level alarm is prompted. This may be due to accumulation and jamming in the discharge pipe 201a, reminding the user to repair the baffle plate 202d or the discharge pipe 201a.

[0062] The alarm component 203 also includes a fire steam port 203d arranged on one side of the slag dust gas separator 102a and an exhaust hole 203e opened on the lower side of the slag dust gas separator 102a. The temperature measuring point 203b is used to measure the slag temperature. When the slag dust temperature exceeds a certain limit and there is a possibility of re-ignition, fire steam is sprayed into the fire steam inlet and enters through the atomizing exhaust hole 203e to isolate the slag dust on the baffle plate 202d from the air to extinguish the fire and cool it down.

[0063] Specifically, the slag collecting part 204 includes a dust box 204a arranged on one side of the discharge pipe 201a, a base 204b arranged on one side of the dust box 204a and a sealing plate 204c arranged on one side of the dust box 204a. The base 204b is supported by a slotted steel, and a forklift can insert a fork hook to replace the dust box 204a by the forklift, thereby reducing manpower labor. The sealing plate 204c prevents slag dust from leaking out and polluting the working environment. The alarm part 203 also includes a material level alarm 203c arranged on one side of the discharge pipe 201a. When the material level alarm 203c sounds, the dust box 204a is full. At this time, the pneumatic gate valve 101d is closed, and the pneumatic gate valve 3 201b is closed, which facilitates the replacement of the dust box 204a and reminds the start of slag cleaning.

[0064] The rest of the structure is the same as that of Example 2.

[0065] Operation process: During use, when the material level alarm 203a is triggered, a high material level alarm is prompted. This may be due to accumulation and jamming in the discharge pipe 201a, reminding you to inspect and repair the baffle plate 202d or the discharge pipe 201a. When the material level alarm 203c sounds, the dust box 204a is full. At this time, the pneumatic gate valve 101d is closed and the pneumatic gate valve 3 201b is closed, which is convenient for replacing the dust box 204a. It reminds you to start slag cleaning. When cleaning slag, the base 204b is supported by a steel mouth, and the forklift can insert the fork hook. The forklift replaces the dust box 204a to reduce manpower.

[0066] It is important to note that the construction and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or resequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the recited function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0067] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0068] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A negative pressure high temperature resistant slag and dust collector device for a thermal power plant, characterized by: It comprises a dust removal assembly (100), comprising a structural member (101), a separation member (102) disposed in the structural member (101), and an anti-blocking member (103) disposed in the structural member (101); A discharge assembly (200) comprising a discharge member (201) disposed inside the structural member (101), a discharge member (202) disposed inside the discharge member (201), an alarm member (203) disposed inside the structural member (101), and a slag collecting member (204) disposed on one side of the structural member (101); The structural component (101) comprises a dust conveying duct (101a), an air preheater electrostatic precipitator interface (101b) arranged on one side of the dust conveying duct (101a), and a metal hose (101c) arranged on the other side of the dust conveying duct (101a); the air preheater electrostatic precipitator interface (101b) is used to connect to the air and smoke system of a thermal power plant; The separation element (102) comprises a slag dust gas separator (102a) arranged inside the dust conveying pipeline (101a) and a slag dust deceleration separation zone (102b) arranged inside the dust conveying pipeline (101a); The separator (102) further comprises a slag dust depth separator (102c) arranged in the dust conveying pipe (101a); the slag dust gas separator (102a) is arranged in a rhombus shape, and the length of the inclined surface on the side facing the airflow is greater than the length of the inclined surface on the side facing away from the airflow; The separation element (102) further comprises an inlet channel (102d) arranged on one side of the slag-dust depth separator (102c), and an outflow channel (102e) arranged on the other side of the slag-dust depth separator (102c); the inlet channel (102d) is an arc-shaped channel and has a slag discharge port at its lower side; the outflow channel (102e) is arranged obliquely on one side of the inlet channel (102d); the inlet channel (102d) and the outflow channel (102e) form a Y-shaped channel.

2. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 1, characterized in that: The structural component (101) comprises a pneumatic gate valve (101d) provided on one side of the dust conveying pipe (101a), a replaceable slag removal port (101e) provided on one side of the metal hose (101c), and a scalding-proof handle (101f) provided on the upper side of the replaceable slag removal port (101e).

3. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 2, characterized in that: The anti-blocking component (103) comprises a compressed air pipe (103a) provided on one side of the dust conveying pipe 101a, a second pneumatic gate valve (103b) provided on one side of the compressed air pipe (103a), and a cover plate (103c) hingedly provided on one side of the compressed air pipe (103a); The blowing direction of one end of the compressed air pipe (103a) extending into the dust conveying pipe (101a) faces one side of the slag-dust depth separator (102c).

4. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 3, characterized in that: The discharge member (201) comprises a discharge pipe (201a) fixedly connected to one side of the dust conveying pipe (101a), and a pneumatic gate valve (201b) disposed on one side of the discharge pipe (201a).

5. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 4, characterized in that: The discharge member (202) comprises a slide groove (202a) provided on one side of the discharge pipe (201a), a slide rod (202b) provided on the inner side of the slide groove (202a), a slide plate (202c) slidably provided on the outer side of the slide rod (202b), a baffle plate (202d) hingedly provided on one side of the slide plate (202c), and a compression spring (202e) sleeved on the outer side of the slide rod (202b); The two ends of the compression spring (202e) are respectively connected to the side wall of the sliding plate (202c) and the inner bottom wall of the sliding groove (202a).

6. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 5, characterized in that: The discharge member (202) further comprises a limit block (202f) arranged on the other side of the baffle plate (202d), a groove (202g) opened on one side of the discharge pipe (201a), and an inclined portion (202h) arranged at the bottom of the groove (202g); the limit block (202f) extends into the groove (202g) and is slidably arranged therewith.

7. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 6, characterized in that: The discharging member (202) further comprises limiting grooves (202i) provided on both sides of the groove (202g), mounting grooves (202j) provided on both sides of the limiting groove (202i), a protrusion (202k) slidably arranged on the inner side of the mounting groove (202j), a return spring (202l) provided on the inner side wall of the mounting groove (202j), and an arc-shaped top block (202m) provided on the inner bottom wall of the limiting groove (202i); the protrusion (202k) extends into the limiting groove (202i) and is slidably arranged therewith; The discharge member (202) further comprises a second return spring (202n) arranged on one side of the baffle plate (202d), and the other end of the second return spring (202n) is connected to the side wall of the discharge pipe (201a).

8. The negative pressure high temperature resistant slag and dust collector device for thermal power plants according to claim 7, characterized in that: The alarm component (203) comprises a material level alarm (203a) arranged on one side of the discharge pipe 201a, a temperature measuring point (203b) arranged on one side of the discharge pipe 201a, and a material level alarm (203c) arranged on one side of the discharge pipe (201a); The alarm component (203) further comprises a fire steam port (203d) provided on one side of the slag dust gas separator (102a) and an exhaust hole (203e) opened on the lower side of the slag dust gas separator (102a).

9. The negative pressure high temperature resistant slag and dust collector device for a thermal power plant according to claim 8, characterized in that: The slag collecting member (204) comprises a slag dust box (204a) arranged on one side of the discharge pipe (201a), a base (204b) arranged on one side of the slag dust box (204a), and a sealing plate (204c) arranged on one side of the slag dust box (204a).

Images