Thermoelectric workshop dry ash loading dust removal device

Abstract

The utility model discloses a dry ash loading dust removal device which comprises a ventilation pipe and a dust removal pipe, an ash silo is provided with an ash loading tank car gantry channel, an ash loading pipeline is arranged on the lower portion of the ash silo, the top of a gantry frame is provided with the ventilation pipe and provided with a flexible connector to be in butt joint with a tank car ventilation opening, and the other end of the ventilation pipe is connected with a thermoelectric workshop coal conveying secondary belt dust remover. Compared with traditional ash loading equipment, the ash loading device is reasonable in structural design, easy to operate and capable of effectively solving the problem of dust raising in ash loading of a tank car, meanwhile, the device effectively utilizes existing materials and equipment of a thermoelectric workshop, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoelectric equipment in chemical plants, in particular to a dry ash loading and dust removal device for a thermoelectric workshop. Background Art

[0002] At present, in the thermal power workshop of the starch processing plant, each of the two boilers is equipped with an electric bag composite dust collector to collect the particulate matter in the boiler flue gas and transport it to the ash bin for storage through a dilute phase pneumatic ash conveying device; the ash stored in the ash bin needs to be loaded and transported out in time; according to environmental protection requirements, boiler fly ash needs to be stored in a closed manner and transported in cans, and dust leakage is not allowed. However, when loading the tank truck, two tank ports need to be opened, one ash inlet and one vent. At present, a small dust collector is installed in the middle of the ash loading pipeline of the ash bin. The air intake and ash discharge pipe of the dust collector are in the form of a pipe-in-pipe. The central pipe discharges ash and the outer circle pipe absorbs ash. Since this dust collector draws air from the ash inlet of the tank truck, the effect of this dust collector often decreases significantly when the tank truck is half loaded, and the vent of the tank truck emits ash due to the rising material level, which can easily cause environmental problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, a dry ash loading and dust removal device is specially provided. The structure of the whole device is reasonably designed, and the existing production equipment in the factory is reasonably utilized to reduce costs and effectively solve the environmental problems caused by tank truck loading of ash.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is:

[0005] A dry ash loading and dust removal device comprises a secondary belt dust collector for conveying coal, a ventilation pipe, and an ash loading pipeline. A gantry passage for ash tank trucks to pass through is arranged below the ash bin, a gantry frame is arranged on one side of the gantry passage, the ash loading pipeline is arranged at the lower part of the ash bin and connected with the ash bin, one end of the ash loading pipeline is connected with the ash bin, and an ash lowering hose is arranged at the other end of the ash loading pipeline. A ventilation pipe is fixedly installed on the top of the gantry frame, a soft connection port is arranged at the end of the ventilation pipe to connect with the ventilation port of the ash tank truck, and the other end of the ventilation pipe is connected to the secondary belt dust collector for conveying coal in a thermal power workshop, a control valve is installed on the ventilation pipe, and a sealing cover is arranged at the soft connection port of the ventilation pipe.

[0006] The ventilation pipe is a newly installed carbon steel pipe, the other end of which is connected to the secondary belt dust collector of the coal conveyor.

[0007] The flexible connection port of the ventilation pipe is a steel wire hose, and a sealing cover is installed at the end thereof to facilitate sealing connection with the ventilation port of the tank truck.

[0008] The gantry and the end of the ash loading pipeline are provided with a hanging device to facilitate the hanging of the ventilation pipe or the ash lowering hose. Correspondingly, the sealing cover of the ventilation pipe and the end of the ash lowering hose are provided with a hook or a buckle to facilitate hanging.

[0009] Furthermore, the sealing cover has a certain counterweight, and the inner diameter of the sealing cover is larger than the outer diameter of the vent of the ash tank truck, and the ventilation hose can be buckled on the vent of the tank truck by its own weight.

[0010] When there is no tank truck entering the passage, the soft connection ports at the ends of the ash loading pipeline and the ventilation pipe are fixed by a hanging device. After the tank truck enters, the ash discharge operator climbs to the top of the tank truck with a ladder, opens the ash inlet of the tank truck, and directly puts the head of the ash lower hose of the ash loading pipeline into the ash inlet; the ash inlet does not need to be sealed; then open the ventilation port on the other side of the tank truck, then remove the ventilation pipe sealing cover on the upper part of the ventilation port and put it on the ventilation port. After confirmation, open the control valve of the secondary belt dust collector of the coal conveyor and the ventilation pipe; then open the ash discharge door of the ash bin, and start the ash discharge fan for ash discharge.

[0011] The beneficial effects of the utility model are as follows: compared with traditional ash loading equipment, the device has a reasonable structural design and is easy to operate, and can effectively solve the dust problem of tank truck ash loading. At the same time, the device effectively utilizes the existing materials and equipment in the thermal power workshop, reducing the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0013] Figure 1 This is a schematic diagram of the structural principle of the embodiment of the utility model:

[0014] 1-secondary belt dust collector, 2-ventilation duct, 3-ash loading pipeline, 4-gantry channel, 5-gantry, 6-ash lowering hose, 7-soft connection port, 8-control valve, 9-sealing cover, 10-suspension device, 11-ash bin, 12-ash inlet, 13-ventilation port. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and 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 implementation methods disclosed below.

[0017] As attached Figure 1As shown in the figure, a dry ash loading and dust removal device comprises a secondary belt dust collector 1 for conveying coal, a ventilation pipe 2, and an ash loading pipeline 3. A gantry passage 4 for passing an ash tank truck is arranged below an ash bin 11, and a gantry frame 5 is arranged on one side of the gantry passage 4. The ash loading pipeline 3 is arranged at the lower part of the ash bin 11 and connected to the ash bin 11. One end of the ash loading pipeline 3 is connected to the ash bin 11, and the other end of the ash loading pipeline 3 is provided with an ash lowering hose 6. A ventilation pipe 2 is fixedly installed on the top of the gantry frame 5, and a soft connection port 7 is provided at the end of the ventilation pipe 2 to connect with the ventilation port 13 of the ash tank truck. The other end of the ventilation pipe 2 is connected to the secondary belt dust collector 1 for conveying coal in a thermal power workshop, a control valve 8 is installed on the ventilation pipe 2, and a sealing cover 9 is provided at the soft connection port 7 of the ventilation pipe.

[0018] The ventilation pipe 2 is a newly installed carbon steel pipe, and the other end of the pipe is connected to the coal conveying secondary belt dust collector 1.

[0019] The flexible connection port 7 of the ventilation pipe 2 is a steel hose, and a sealing cover 9 is installed at the end thereof to facilitate sealing connection with the ventilation port 13 of the tank truck.

[0020] The gantry 5 and the end of the ash loading pipeline are provided with a hanging device 10 to facilitate the hanging of the ventilation pipe 2 or the ash lowering hose 6. Correspondingly, the sealing cover 9 of the ventilation pipe 2 and the end of the ash lowering hose 6 are provided with hooks or buckles to facilitate hanging.

[0021] Furthermore, the sealing cover 9 has a certain counterweight, and the inner diameter of the sealing cover 9 is larger than the outer diameter of the vent 13 of the ash tank truck, and the ventilation hose can be buckled on the vent 13 of the tank truck by its own weight.

[0022] When there is no tank truck entering the passage, the soft connection port 7 at the end of the ash loading pipeline and the end of the ventilation pipe 2 is fixed by a hanging device 10. After the tank truck enters, the ash discharge operator climbs to the top of the tank truck through a ladder, opens the ash inlet 12 of the tank truck, and directly puts the head of the ash lowering hose 6 of the ash loading pipeline into the ash inlet 12; the ash inlet 12 does not need to be sealed, and is used as an air inlet for the tank truck vent 13. The ventilation pipe 2 sucks air to form a negative pressure, so there is no ash leakage problem at the tank truck ash inlet 12; then open the vent 13 on the other side of the tank truck, then take off the ventilation pipe sealing cover 9 on the upper part of the vent 13 and put it on the vent 13. After confirmation, open the secondary belt dust collector 1 for coal conveying and the control valve 8 of the ventilation pipe 2; then open the ash discharge door of the ash bin 11, and start the ash discharge fan for ash discharge.

[0023] The modified dry ash loading and dust removal device solves the dust problem of tank truck dry ash loading, and has certain environmental and social benefits. It improves the utilization rate of the existing workshop coal conveying secondary belt dust collector 1; the collected ash is returned to the boiler together with the coal powder, which also saves the subsequent work of handling the dust removal ash. The amount of ash collected during loading is not large, and it has basically no effect on coal conveying and boiler combustion.

[0024] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dry ash loading and dust removal device for a thermal power plant, characterized in that: It includes a secondary coal conveying belt dust collector, a ventilation pipe, and an ash loading pipeline. A gantry passage is arranged below the ash bin for the ash tank truck to pass through, and a gantry is arranged on one side of the gantry passage. The ash loading pipeline is arranged at the lower part of the ash bin and connected with the ash bin. One end of the ash loading pipeline is connected with the ash bin, and an ash lowering hose is arranged at the other end of the ash loading pipeline. A ventilation pipe is fixedly installed on the top of the gantry, and a soft connection port is arranged at the end of the ventilation pipe to connect with the ventilation port of the ash tank truck. The other end of the ventilation pipe is connected to the secondary coal conveying belt dust collector of the thermal power workshop. A control valve is installed on the ventilation pipe, and a sealing cover is arranged at the soft connection port of the ventilation pipe.

2. The dry ash loading and dust removal device for thermal power plant according to claim 1 is characterized in that: The ventilation pipe is a newly installed carbon steel pipe, the other end of which is connected to the secondary belt dust collector of the coal conveyor.

3. The dry ash loading and dust removal device for thermal power plant according to claim 1 is characterized in that: The flexible connection port of the ventilation pipe is a steel wire hose, and a sealing cover is installed at the end thereof to facilitate sealing connection with the ventilation port of the tank truck.

4. The dry ash loading and dust removal device for thermal power plant according to claim 1 is characterized in that: The gantry and the end of the ash loading pipeline are provided with a hanging device, and the sealing cover of the ventilation pipe and the end of the ash lowering hose are provided with a hook or a buckle.

5. The dry ash loading and dust removal device for thermal power plant according to claim 1 is characterized in that: The sealing cover has a certain counterweight, and the inner diameter of the sealing cover is larger than the outer diameter of the vent of the ash tank truck. The ventilation hose can be buckled on the vent of the tank truck by its own weight.

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