CN219688682U

CN219688682U - Wet ash discharging device

Info

Publication number: CN219688682U
Application number: CN202320641634.XU
Authority: CN
Inventors: 孟德暑; 欧阳昭响; 何志红; 程晶; 虞晶晶; 陈玉莲; 郭朝
Original assignee: Yiliang Chihong Mining Industry Co ltd
Current assignee: Yiliang Chihong Mining Industry Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-09-15
Anticipated expiration: 2033-03-28

Abstract

The utility model relates to a wet ash discharging device, which belongs to the technical field of dust removing equipment, and comprises an ash bucket, an ash discharging valve, a middle box, an ash discharging groove, a control cabinet and a variable frequency cabinet; an ash discharging valve is arranged below the ash bucket, and the lower part of the ash discharging valve is connected with an intermediate box; the middle box is connected with the ash discharge groove; the ash discharge valve is connected with a variable frequency cabinet, and the variable frequency cabinet is connected with a control cabinet. The utility model can meet the requirements of dust removal and dust fall in production, reduce the abrasion of large-particle ores on dust collection pipelines and dust discharge valves, prolong the service lives of the pipelines and the dust discharge valves, reduce the dust amount and the dust discharge amount while meeting the dust removal effect, ensure that the cleaning and the maintenance of blocked pipelines are more convenient and efficient, and ensure smooth discharge.

Description

Wet ash discharging device

Technical Field

The utility model belongs to the technical field of dust removal equipment, and particularly relates to a wet ash discharging device.

Background

The KHFM96-5 gas tank pulse bag type dust remover has the following problems in the popularization and application of reducing ore crushing dust: the star-shaped discharge valve is easy to block and has unsmooth discharge; (2) The cleaning of the blocked ash discharge pipeline is difficult, the time is long, and the production is influenced; (3) The star-shaped discharge valve blade is easy to wear, after the blade is slightly worn, dust collection water rises into the ash bucket, so that dust moisture in the ash bucket is increased, the dust moisture is accumulated on the inner wall of the ash bucket, the ash bucket is blocked due to no timely discovery of treatment, and normal production is seriously affected.

In the prior art, there is a device capable of discharging ash in a dry and wet mode, for example, a dust remover ash discharging system disclosed in chinese patent CN212798753U, as shown in fig. 4, a suction and discharge vehicle is installed between a scraper conveyor and a bucket elevator, so as to realize the operation of discharging ash in a dry and wet mode. When ash discharging operation is carried out, ash can be discharged by switching to the ash sucking and discharging vehicle, dust in the scraper conveyor is directly sucked away by the ash sucking and discharging vehicle, the dust is not required to be conveyed into the ash collecting bin, meanwhile, the humidifier is stopped, water sources are saved, energy consumption is reduced, ash discharging efficiency is improved, and secondary dust emission can not occur. When the suction and exhaust vehicle fails or wet ash needs to be recovered, the suction and exhaust vehicle can be switched to the humidifier to carry out humidification operation, so that the problem that dust deposited on the dust remover cannot be discharged is avoided. The technology can realize dry and wet ash discharge, but the discharger still has the problem of blockage, the discharger is in sealing connection with a pipeline, the blockage condition of the pipeline cannot be timely found, the pipeline is timely cleaned, the star-shaped discharge valve blades are easy to wear, dust collection water is upwards lifted into the ash bucket after the blades are slightly worn, so that the water content of dust in the ash bucket is increased, the dust is accumulated on the inner wall of the ash bucket, the ash bucket is still blocked due to non-timely treatment, and the production is seriously influenced. Therefore, it is necessary to provide an ash discharging device capable of avoiding blocking and reducing the ash discharging amount of dust.

Disclosure of Invention

In order to overcome the problems in the background technology, the utility model provides the wet ash discharging device which can meet the requirements of dust removal and dust fall in production, reduce the abrasion of large-particle ores on dust collecting pipelines and ash discharging valves, prolong the service lives of the pipelines and the ash discharging valves, reduce the dust amount and the ash discharging amount while meeting the dust removal effect, ensure that the cleaning and maintenance of blocked pipelines are more convenient and efficient, and ensure smooth discharge.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the wet ash discharging device comprises an ash bucket 1, an ash discharging valve 2, a middle box 3, an ash discharging groove 4, a control cabinet 5 and a frequency conversion cabinet 6; an ash discharging valve 2 is arranged below the ash bucket 1, and an intermediate box 3 is connected below the ash discharging valve 2; the middle box 3 is connected with the ash discharge groove 4; the ash discharge valve 2 is connected with the variable frequency cabinet 6, and the variable frequency cabinet 6 is connected with the control cabinet 5.

Preferably, the ash discharge valve 2 is connected with the upper right of the middle box 3.

Preferably, a slag removing port 7 is formed in the upper left side of the middle box 3.

Preferably, a frequency converter 8 is arranged in the frequency conversion cabinet 6, and the frequency converter 8 is connected with the ash discharge valve 2.

The utility model has the beneficial effects that:

the utility model adopts the frequency conversion to control the rotation speed of the dust removing fan, adjusts the air quantity according to the dust quantity demand generated by crushing ore, controls the large-particle ore quantity sucked into the dust collecting pipeline, not only meets the dust removing and reducing requirements of production, but also reduces the abrasion of the large-particle ore to the dust collecting pipeline and the dust discharging valve, prolongs the service lives of the pipeline and the dust discharging valve, and avoids the blockage of the dust hopper; the dust removal effect can be met, the dust quantity and the ash discharge quantity are reduced, and the running energy consumption of equipment such as a submerged pump, a motor and the like is also reduced; the slag removal port is additionally arranged, so that abnormal conditions of the ash discharge pipeline can be observed and identified more easily, and the blocked pipeline is cleaned and maintained more conveniently and efficiently.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a main loop of the frequency converter of the present utility model;

FIG. 3 is a schematic diagram of a control loop of a frequency converter according to the present utility model;

FIG. 4 is a schematic diagram of a prior art ash discharge system of a dust collector;

in the figure, a 1-ash bucket, a 2-ash discharge valve, a 3-middle box, a 4-ash discharge groove, a 5-control cabinet, a 6-frequency conversion cabinet, a 7-slag removal port and an 8-frequency converter;

m-motor, FR-thermal relay, ACS 800-converter.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

As shown in fig. 1-3, the wet ash discharging device comprises an ash bucket 1, an ash discharging valve 2, an intermediate box 3, an ash discharging groove 4, a control cabinet 5 and a frequency conversion cabinet 6. An ash discharge valve 2 is arranged below the ash bucket 1, and the ash discharge valve 2 is a star-shaped ash discharge valve. The upper right of the middle box 3 is connected to the lower side of the ash discharging valve 2, the middle box 3 is connected with the ash discharging groove 4, and a slag removing opening 7 is formed in the upper left of the middle box 3, so that smooth conditions of the ash discharging groove 4 can be observed conveniently, and sundries are not easy to be discharged in a large cleaning block.

The ash unloading valve 2 is connected with a frequency conversion cabinet 6, and the frequency conversion cabinet 6 is connected with a control cabinet 5. A frequency converter 8 is arranged in the frequency conversion cabinet 6, and the frequency converter 8 is connected with the ash discharge valve 2. The frequency converter 8 is arranged in the frequency conversion cabinet 6, and corresponding control lines are connected into the frequency converter 8 according to a circuit drawing of the control cabinet 5 and an ACS880 frequency converter wiring diagram. And modifying the automatic control program according to the field control mode to enable the automatic control program to meet the remote frequency modulation function. According to the parameters of the field motor, the following parameters are set on a control panel of the frequency converter 8: rated current, rated frequency, rated rotational speed, rated power, rated voltage; after the parameters are set, the motor is tested according to the prompt of the frequency converter 8, if no abnormality exists after the test, the set parameters are backed up, and then remote debugging is carried out.

The KM5 alternating-current contactor of the cloth bag pulse dust collector control cabinet is used for controlling the power supply of the frequency converter, three-phase power is led to the input end of the frequency converter 8 from the lower pile head of the thermal relay FR, and then a motor wire is integrated into the output end of the frequency converter 8, and the main loop of the frequency converter is shown in figure 2. According to a control loop diagram of the frequency converter 8, the alternating-current contactor KM5 controlled by the intermediate relay KA7 is changed into a direct control KM5 controlled by a 220v power switch; the variable frequency cabinet KA1 is controlled by KA7, and at the moment, the normally open contact of KA1 controls the frequency converter to start/stop; and then the fault output signal of the frequency converter is connected to the normally closed contact of the thermal relay FR, and the fault signal is fed back to the PLC by the FR. The control loop of the frequency converter 8 is shown in fig. 3.

According to the utility model, the frequency converter 8 is arranged, the rotating speed of the dust removal fan is controlled by frequency modulation, the air quantity is adjusted according to the requirement, the influence caused by the factors such as ore property change, overlarge air quantity and the like is avoided, dust collection water and too much large-particle ore are sucked into the ash bucket 1, the ash discharge groove 4 is designed and arranged below the discharge valve 2, the ash discharge groove 4 is provided with the slag removal port 7, and the slag removal port is used for observing the unobstructed condition of an ash discharge pipeline and removing larger plastic sundries, so that the ash bucket 1 can be prevented from being blocked, normal production is ensured, and better economic benefit is generated.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims

1. A wet ash discharge device, characterized in that: the wet ash discharging device comprises an ash bucket (1), an ash discharging valve (2), a middle box (3), an ash discharging groove (4), a control cabinet (5) and a variable frequency cabinet (6); an ash discharging valve (2) is arranged below the ash bucket (1), and the lower part of the ash discharging valve (2) is connected with an intermediate box (3); the middle box (3) is connected with the ash discharge groove (4); the ash discharge valve (2) is connected with the variable frequency cabinet (6), and the variable frequency cabinet (6) is connected with the control cabinet (5).

2. A wet ash discharge apparatus according to claim 1, characterized in that: the ash discharging valve (2) is a star-shaped ash discharging valve.

3. A wet ash discharge apparatus according to claim 1, characterized in that: the ash discharge valve (2) is connected with the upper right part of the middle box (3).

4. A wet ash discharge apparatus according to claim 1, characterized in that: the upper left of the middle box (3) is provided with a slag removing port (7).

5. A wet ash discharge apparatus according to claim 1, characterized in that: a frequency converter (8) is arranged in the frequency conversion cabinet (6), and the frequency converter (8) is connected with the dust discharging valve (2).