Dust removal conveying equipment for coal conveying system of power plant
By designing a bag dust collector and a distribution hood and atomizing nozzle structure in the lower hopper in the power plant's coal transportation system, the problems of high dust emissions and equipment instability were solved, and efficient dust removal, energy saving and environmental protection were achieved.
Patent Information
- Application Number
- CN202422638944.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The dust collectors in existing power plant coal transportation systems have high dust emission values and poor collection effects. They also have problems such as high water consumption and dust adhesion and covering of equipment, which affects environmental protection and equipment stability.
A dust removal and conveying equipment including a bag dust collector, a dust collecting hood, a lower hopper and an atomizing assembly is designed. By arranging a distribution hood and an atomizing nozzle in the lower hopper, uniform dispersion of dust and convergence of water mist are achieved, dust adhesion is avoided, and the dust removal effect and equipment stability are improved.
It achieves efficient dust removal, reduces water consumption, improves equipment stability and operational reliability, reduces maintenance difficulty, and meets environmental protection requirements.
Smart Images
Figure CN223444751U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of power plant coal conveying, especially relates to a dust removal conveying equipment for power plant coal conveying system. BACKGROUND
[0002] The dust remover is an important component of each transfer station of the power plant coal conveying system, is suitable for frequent start and stop of equipment, load change, coal variety, and effectively collects the dust generated by crushing and grinding of raw coal or material through start and stop of the dust remover of the coal conveying system transfer station and the coal bunker, and after collection, the dust is conveyed back to the coal yard, meets the needs of organized emission of environmental protection, energy saving and consumption reduction of the unit, improves the economy, safety and reliability of the unit operation. At present, the dust emission value of the dust remover of each transfer station and coal bunker of the power plant coal conveying system is high, the collection effect is poor, and the environmental protection emission requirement is not met. CONTENT OF THE UTILITY MODEL
[0003] Therefore, the utility model aims at providing a dust removal conveying equipment for the power plant coal conveying system to solve the problems of poor dust removal effect, energy saving and environmental protection of the existing dust removal conveying equipment for the coal conveying system.
[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:
[0005] A dust removal conveying equipment for the power plant coal conveying system, including bag type dust collector, conveying belt and dust collecting cover, the dust collecting cover is arranged above the conveying belt, the dust collecting cover is provided with a suction pipe communicated with the air inlet of the bag type dust collector, and the dust collecting cover is provided with a discharging mechanism communicated with the ash bucket of the bag type dust collector at one end. The discharging mechanism includes a discharging hopper, a feeding pipe arranged above the discharging hopper and a discharging port arranged below the discharging hopper and corresponding to the conveying belt, one end of the feeding pipe is communicated with the discharging hopper, and the other end is communicated with the ash bucket of the bag type dust collector. The position corresponding to the feeding pipe below in the discharging hopper is provided with a distribution cover, and the distribution cover is provided with an atomizing port communicated with the material passing gap between the left and right sides of the distribution cover and the inner wall of the discharging hopper. The position corresponding to the atomizing port in the distribution cover is provided with an atomizing assembly.
[0006] Further, the atomizing assembly includes a water supply pipe, one end of the water supply pipe extending into the distribution cover is provided with an atomizing nozzle, and the other end of the water supply pipe extends out of the discharging hopper.
[0007] Further, the atomizing nozzle is arranged at least in two, and each atomizing nozzle is arranged on the water supply pipe at one end and is arranged towards the material passing gap at the other end. Further, the atomizing nozzle is arranged at least in two, and each atomizing nozzle is arranged on the water supply pipe at one end and is arranged towards the material passing gap at the other end.
[0008] Further, a conical end part is arranged below the material distribution cover.
[0009] Further, an arc surface part is arranged at one end of the material distribution cover towards the feeding pipe.
[0010] Further, a vibration generator is arranged on the lower hopper.
[0011] Further, dust baffle plates are arranged on the left and right sides of the lower hopper corresponding to the material outlet positions.
[0012] Further, the dust baffle plates are made of rubber material.
[0013] Compared with the prior art, the dust removal and conveying equipment for the coal conveying system of a power plant has the following advantages:
[0014] The dust removal and conveying equipment for the coal conveying system of a power plant has the advantages of good dust removal effect, energy saving and environmental protection. The material distribution cover is arranged in the lower hopper, which can uniformly distribute the coal powder entering the lower hopper through the feeding pipe to all parts of the lower hopper, avoiding the accumulation of coal powder in the lower hopper. Moreover, the material distribution cover can separate the atomization assembly from the outlet of the feeding pipe, thereby protecting the atomization assembly and discharging the water mist gathered after being sprayed by the atomization assembly. The water mist discharged through the gathered atomization outlet can directly act on the coal powder falling onto the conveying belt, thereby avoiding the adhesion of the coal powder in the lower hopper due to water absorption, ensuring that the coal powder in the lower hopper can continuously and stably fall onto the conveying belt, improving the stability of the conveying equipment during operation, and reducing the use and maintenance difficulty of the conveying equipment. BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings are presented by way of example or for purpose of illustration and not limitation.
[0016] Figure 1 FIG. 1 is a structural schematic view of a dust removal and conveying equipment for a coal conveying system of a power plant according to an embodiment of the present application;
[0017] Figure 2 FIG. 2 is an internal schematic view of a lower hopper in the dust removal and conveying equipment for the coal conveying system of the power plant according to the embodiment of the present application.
[0018] Legend of reference signs:
[0019] 1, bag dust collector; 2, dust collecting cover; 3, conveying belt; 4, air suction pipe; 5, lower hopper; 6, water supply pipe; 7, vibration generator; 8, feeding pipe; 9, atomization nozzle; 10, material passing gap; 11, material distribution cover; 12, arc surface part; 13, conical end part; 14, dust baffle plate. DETAILED DESCRIPTION
[0020] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0021] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0022] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0023] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.
[0024] A kind of dust removal conveying equipment for power plant coal conveying system, such as Figure 1 And Figure 2As shown, including cloth bag dust collector 1, conveyor belt 3, and dust hood 2;The dust hood 2 is provided above the conveying belt, and the dust hood 2 is provided with a suction pipe 4 communicated with the air inlet of the cloth bag dust collector 1, and one end of the dust hood 2 is provided with a discharging mechanism communicated with the dust hopper of the cloth bag dust collector 1;The discharging mechanism comprises a discharging hopper 5, a feeding pipe 8 arranged above the discharging hopper 5, and a discharge port arranged below the discharging hopper 5 corresponding to the conveying belt 3, one end of the feeding pipe 8 is communicated with the discharging hopper 5, and the other end is communicated with the dust hopper of the cloth bag dust collector 1;The discharging hopper 5 is provided with a distribution cover 11 corresponding to the position below the feeding pipe 8, and the distribution cover 11 is provided with a misting port communicated with the material passing gap 10, and the distribution cover 11 is provided with a misting assembly corresponding to the position of the misting port.
[0025] For example, the cloth bag dust collector 1, the conveyor belt 3 and the dust hood 2 can all use existing equipment, and the installation and use mode is the prior art, so it is not repeated here. The dust hood 2 is used to shield the conveying belt 3 to avoid the dispersion of dust during the conveying process of the conveying belt 3. In actual use, the suction pipe 4 can be arranged at intervals along the length direction of the dust hood 2, each suction pipe 4 is connected with the dust hood 2 at one end and connected with the air inlet of the cloth bag dust collector 1 at the other end, the dust is collected and filtered by the cloth bag dust collector 1, the coal powder can be obtained and collected into the dust hopper, thereby realizing the collection of dust and avoiding dust pollution of the environment or equipment.
[0026] In actual application, the discharging hopper 5 can be installed and fixed on the dust hood 2 through a spring support, so as to facilitate the vibration discharging of the discharging hopper 5, and those skilled in the art can also select other ways to install the discharging hopper 5 according to actual needs, which is not repeated here. By arranging the distribution cover 11 in the discharging hopper 5, the distribution cover 11 can not only uniformly distribute the coal powder entering the discharging hopper 5 through the feeding pipe 8 to the left and right sides of the discharging hopper 5, but also can separate the misting assembly from the outlet of the feeding pipe 8, thereby realizing the protection of the misting assembly and the convergence of the water mist sprayed by the misting assembly before being discharged, the water mist discharged through the converged discharge port can directly act on the coal powder falling on the conveying belt 3, thereby avoiding the adhesion of the coal powder in the discharging hopper 5 due to water absorption, ensuring that the coal powder in the discharging hopper 5 can continuously and stably fall into the conveying belt 3, improving the stability of the conveying equipment during operation, and reducing the use and maintenance difficulty of the conveying equipment.
[0027] In addition, by first collecting the dust by the cloth bag dust collector 1 and then using the misting assembly to atomize and remove the collected coal powder, not only can reduce the water consumption, make the conveying equipment more energy-saving and environment-friendly, but also can realize the effective utilization of the collected coal powder, the coal powder is not easy to scatter when falling into the conveying belt 3 again, which is helpful to prevent resource waste.
[0028] Preferably, the atomization assembly comprises a water supply pipe 6, the water supply pipe 6 extends into the distribution cover 11, one end of the water supply pipe 6 is provided with an atomizing nozzle 9, and the other end extends out of the distribution hopper 5. Exemplarily, the water supply pipe 6 and the distribution cover 11 are both fixed on the distribution hopper, wherein the atomizing nozzle 9 and the water supply pipe 6 can be threadedly connected, so as to facilitate subsequent replacement or maintenance of the atomizing spray. Those skilled in the art can also select other ways to install the atomizing nozzle 9 according to actual needs, which will not be described here.
[0029] In actual application, at least two atomizing nozzles 9 are provided, each atomizing nozzle 9 is provided on the water supply pipe 6 at one end and is arranged towards the material passing gap 10 at the other end. Exemplarily, the atomizing nozzle 9 can be provided with two, four or more. By providing at least two atomizing nozzles 9, the water mist concentration can be improved, thereby ensuring the dust removal effect of the pulverized coal falling through the material passing gap 10, so that the pulverized coal can gradually absorb water and stick together during falling, and finally fall back onto the conveyor belt 3, and is not easy to scatter.
[0030] Preferably, the distribution cover 11 is provided with a tapered end portion 13 below. Exemplarily, the small-diameter end of the tapered end portion 13 is arranged towards the conveyor belt 3. By providing the tapered end portion 13 below the distribution cover 11, the tapered end portion 13 can play a good guiding role on the atomized water mist, and the large water droplets can flow downwards after adhering to the inner side wall of the distribution cover 11, and finally drop onto the coal blocks of the conveyor belt 3, ensuring that the water mist sprayed through the atomizing port below the distribution cover 11 is fine water droplets, so that the fine water droplets can play a good dust removal effect on the secondary scattered dust of the pulverized coal during falling, and at the same time, the pulverized coal will not be caked and stuck together, which is conducive to ensuring the reliability and stability of the distribution hopper 5, and reducing the possibility of the distribution hopper 5 being blocked.
[0031] Preferably, the distribution cover is provided with an arc surface portion 12 at one end towards the feeding pipe 8. Exemplarily, the feeding pipe 8 can adopt a corrugated pipe. By providing the arc surface portion 12, the pulverized coal entering the distribution hopper 5 through the feeding pipe 8 can flow uniformly to the left and right sides of the distribution cover 11 through the material passing gap 10 under the guidance of the arc surface portion 12, which is conducive to dispersing the pulverized coal and ensuring the uniformity of the pulverized coal falling, thereby improving the dust removal effect of the atomization assembly on the pulverized coal.
[0032] In actual application, the distribution hopper 5 is provided with a vibration generator 7. Exemplarily, the vibration generator 7 can adopt the existing vibration generator 7 installed on the hopper. Those skilled in the art can also select other suitable vibration generators 7 and their corresponding installation methods according to actual needs to drive the distribution hopper 5 to vibrate and drive the pulverized coal to fall, which will not be described here. By providing the vibration generator 7, the vibration feeding can be realized, which is conducive to further reducing the possibility of the distribution hopper 5 being blocked.
[0033] Preferably, the dust baffle 14 is made of rubber material, and is fixed on the lower hopper 5 by screws. By setting the dust baffles 14 on the left and right sides of the discharge port, water mist and coal powder can be gathered, and secondary scattering of dust after the coal powder falls on the conveying belt 3 can be avoided. In addition, the dust baffle 14 made of rubber material has good elastic deformation performance, and can better fit the edge of the conveying belt 3, thereby further reducing the possibility of dust overflow.
[0034] The dust removal conveying equipment for the power plant coal conveying system has the advantages of good dust removal effect, energy saving and environmental protection. The distribution cover is arranged in the lower hopper, which can uniformly distribute the coal powder entering the lower hopper through the feed pipe to all parts of the lower hopper, avoiding the accumulation of coal powder in the lower hopper. Moreover, the distribution cover can also separate the atomizing assembly from the outlet of the feed pipe, thereby protecting the atomizing assembly and discharging the water mist gathered after being sprayed by the atomizing assembly. The water mist discharged through the gathered atomizing outlet can directly act on the coal powder falling on the conveying belt, thereby avoiding the adhesion of the coal powder due to water absorption in the lower hopper, ensuring that the coal powder in the lower hopper can continuously and stably fall on the conveying belt, improving the stability of the conveying equipment during operation, and reducing the use and maintenance difficulty of the conveying equipment.
[0035] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A dust removal and conveying equipment for a power plant coal conveying system, characterized by: The invention comprises a bag dust collector (1), a conveyor belt (3), and a dust collecting hood (2); the dust collecting hood (2) is arranged above the conveyor belt, an air intake pipe (4) connected to the air inlet of the bag dust collector (1) is provided on the dust collecting hood (2), and a discharge mechanism connected to the ash hopper of the bag dust collector (1) is provided at one end of the dust collecting hood (2); the discharge mechanism comprises a discharge hopper (5), a feed pipe (8) arranged above the discharge hopper (5), and a discharge hopper (5) provided below the discharge hopper (5) corresponding to the conveyor belt (3). The material outlet is provided, one end of the feed pipe (8) is connected to the lower hopper (5), and the other end is connected to the ash hopper of the bag dust collector (1); a distribution cover (11) is provided at a position corresponding to the lower part of the feed pipe (8) in the lower hopper (5), and there are material flow gaps (10) between the left and right sides of the distribution cover (11) and the inner wall of the lower hopper (5); an atomization port connected to the material flow gap (10) is provided below the distribution cover (11), and an atomization component is provided at a position corresponding to the atomization port in the distribution cover (11).
2. The dust removal and conveying equipment for a power plant coal conveying system according to claim 1, characterized in that: The atomizing assembly comprises a water supply pipe (6), one end of which extends into the material distribution cover (11) and is provided with an atomizing nozzle (9), and the other end of which extends out of the lower hopper (5).
3. The dust removal and conveying equipment for a power plant coal conveying system according to claim 2, characterized in that: At least two atomizing nozzles (9) are correspondingly provided, and one end of each atomizing nozzle (9) is provided on the water supply pipe (6), and the other end is provided toward the material passing gap (10).
4. The dust removal and conveying equipment for a power plant coal conveying system according to claim 3, characterized in that: A conical end portion (13) is provided below the material distribution cover (11).
5. A dust removal and conveying equipment for a coal conveying system in a power plant according to any one of claims 1 to 4, characterized in that: The distribution cover (11) is provided with an arcuate surface (12) at one end facing the feed pipe (8).
6. The dust removal and conveying equipment for a power plant coal conveying system according to claim 1, characterized in that: The lower hopper (5) is provided with a vibration generator (7).
7. The dust removal and conveying equipment for a power plant coal conveying system according to claim 1, characterized in that: Dust shields (14) are provided at positions corresponding to the discharge ports on the left and right sides of the lower hopper (5).
8. The dust removal and conveying equipment for a power plant coal conveying system according to claim 7, characterized in that: The dust shield (14) is made of rubber material.