CN211697116U

CN211697116U - Full-automatic unmanned on duty sampling device of bulk material

Info

Publication number: CN211697116U
Application number: CN201920225452.8U
Authority: CN
Inventors: 刘洋; 冷雪
Original assignee: Dalian Zhonghui Taichang Power Environmental Protection Engineering Co ltd
Current assignee: Dalian Zhonghui Taichang Power Environmental Protection Engineering Co ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-10-16
Anticipated expiration: 2029-02-22

Abstract

The utility model discloses a full-automatic unmanned on duty sampling device of bulk material, it includes: a sampling bypass pipeline; the controller controls the relay in the control box to suck through the first control loop; the control box controls the air compressor to start through a second control loop and controls the electromagnetic pneumatic valve to start through a third control loop; the time relay is arranged in the control box, compressed air is enabled to be respectively communicated with the inlet and the outlet of the electromagnetic pneumatic valve through first pipelines on two sides of the pipeline to purge the inlet and the outlet of the electromagnetic pneumatic valve in two ways; the time relay also allows bulk material delivered under pressure to enter the sampling device through a sampling bypass line and a sample collection tank to collect samples blown under bulk material delivery pressure. The utility model thoroughly solves the problem of manual sampling, and fully automatically samples on line when bulk materials start to be conveyed; the unattended operation and on-line sampling in the whole process are realized, and the sample collection is environment-friendly and has strong representativeness.

Description

Full-automatic unmanned on duty sampling device of bulk material

Technical Field

The utility model belongs to the technical field of the sampling test and specifically relates to a full-automatic unmanned on duty sampling device of bulk material.

Background

At present, bulk materials of pneumatic transmission are sampled manually, and sampling personnel sample the bulk materials into a container by means of a sampling pipe additionally arranged on a pneumatic transmission pipeline and a switching valve during the transmission process by means of transmission pressure. The material splashes to pollute the environment due to pressure in the process of opening the valve, and the amount of samples manually opening and closing the valve cannot be controlled. When the material is conveyed in a batch for a long time, the valve needs to be opened and closed discontinuously by a sampling worker for sampling, and because the opening and closing time and the size of the valve are poor in representativeness of the samples collected by manual control, the labor intensity of the sampling worker is increased. If the sample test result is used as the basis of commercial settlement, disputes are easy to occur. For example, the prior art scheme is to install a bypass sampling tube and a valve on a pipeline for pneumatically conveying bulk materials, manually open the valve in the conveying process and collect a sample into a sample collection tank by conveying pressure, and then close the valve. However, the existing sampling device completely opens and closes the valve to sample by manpower, and has the following disadvantages: (a) because the time for opening and closing the valve is manually controlled, the sampling amount and the sampling interval cannot be controlled, the representativeness of the sample is poor, and the management risk exists. (b) Because the sample is collected in the sample collection tank by conveying pressure, no dustproof measure is adopted in the collection process, the scattered materials are discharged in an unorganized mode to pollute the environment, and occupational health risks exist during the operation of a sampling worker. (d) Because the sampling bypass is connected and drawn on the main pipeline of carrying, because be interrupted the sampling, the main pipeline still is in bulk material transport state when not sampling, and the long-pending material of sampling bypass pipeline blocks up, needs the manual penetrating side to sample, and penetrating in-process easily produces the material and flies upward the polluted environment.

Disclosure of Invention

In view of the drawback that prior art exists, the utility model provides a full-automatic unmanned on duty sampling device of bulk material to effectively solve the technical problem who mentions in the background art.

The utility model provides a full-automatic unmanned on duty sampling device of bulk material which characterized in that includes: the sampling bypass pipeline is communicated with the bulk material conveying main pipeline; the controller is arranged at the front end of the communication position of the bulk material conveying main pipeline and the sampling bypass pipeline and controls the suction of a relay in the control box through a first control loop; the control box controls the air compressor to start through the second control loop and controls the electromagnetic pneumatic valve to open through the third control loop, so that the air compressor supplies air to the electromagnetic pneumatic valve through the compressed air pipeline; the time relay with the functions of delaying the power-on time and delaying the power-off time is arranged in the control box, and when the time relay is in the delayed power-off state, the electromagnetic pneumatic valve is in a normally open state, so that compressed air is blown to the inlet and the outlet of the electromagnetic pneumatic valve in two paths through a first pipeline, wherein the two sides of the first pipeline are respectively communicated with the inlet and the outlet of the electromagnetic pneumatic valve; when the time relay is in delayed energization, the electromagnetic pneumatic valve closes the purging process through a fourth control loop and opens the purging process, so that bulk materials conveyed by pressure enter the sampling device through a sampling bypass pipeline; and a sample collection tank for collecting the sample blown by the bulk delivery pressure.

Further, the controller preferably adopts an electric butterfly valve.

Further, the compressed air flow rate is adjusted by a throttle valve.

Furthermore, install the breather valve of filter core in the appearance jar of collection.

Further, the electromagnetic pneumatic valve is preferably a 304 stainless steel pneumatic valve.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model thoroughly solves the problem of manual sampling, fully automatically samples on line when bulk materials start to be conveyed, does not need to be adjusted again after the sampling time and the sampling interval are set according to requirements, collects the samples into a closed 304 stainless steel container provided with a breather valve, and has no dust flying; the unattended operation and on-line sampling in the whole process are realized, and the sample collection is environment-friendly and has strong representativeness.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and the present invention is not limited only to the contents referred to in the examples.

Fig. 1 is a schematic diagram corresponding to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In view of prior art's a great deal of drawback, the utility model discloses a full-automatic unmanned on duty sampling device of bulk material, a serial communication port, include:

a sampling bypass pipeline 14 communicated with the bulk material conveying main pipeline 13; the controller 3 is arranged at the front end of the communication part of the bulk material conveying main pipeline 13 and the sampling bypass pipeline 14, and the controller 3 controls the suction of a relay in the control box 2 through the first control loop 1; the control box 2 controls the air compressor 4 to be started through the second control loop 8 and controls the electromagnetic pneumatic valves to be started through the third control loop 9, so that the air compressor 4 supplies air to the electromagnetic pneumatic valves 7-304 stainless steel pneumatic valves through the compressed air pipeline 6, the flow of the compressed air is regulated through the throttle valve 12, and the throttle valve 12 is provided with two stages of throttle valves to control air for purging the inlet and the outlet of the electromagnetic pneumatic valve 7; the time relay with the functions of delaying the power-on time and delaying the power-off time is arranged in the control box 2, and when the time relay is in the delayed power-off state, the electromagnetic pneumatic valve is in a normally open state, so that compressed air is blown to the inlet and the outlet of the electromagnetic pneumatic valve 7 in two paths through a first pipeline 11 which is respectively communicated with the inlet and the outlet of the electromagnetic pneumatic valve 7 on two sides of the pipeline; when the time relay is in delayed energization, the electromagnetic pneumatic valve is closed and opened in a purging process through a fourth control loop 10, and then bulk materials conveyed by pressure enter the sampling device through a sampling bypass pipeline 14; and a sample collection tank 15 for collecting the sample blown by the bulk material delivery pressure, in which a breather valve 16 of the filter element is installed.

The utility model discloses a working process does: the automatic control is realized through an electric butterfly valve arranged on a sampling bypass, namely a bulk material conveying main pipeline 13 in front of a sampling bypass pipeline, when bulk materials are required to be conveyed pneumatically, the electric butterfly valve on the main pipeline is firstly opened remotely, after the electric butterfly valve 3 is opened, an intermediate relay is controlled by a first control loop 1 in an electric head to be sucked (arranged in a control box), an air compressor 4 is started through a second control loop 8, an electromagnetic pneumatic valve 5 is opened through a third control loop 9, air is supplied to the electromagnetic pneumatic valve 7 through a compressed air pipeline 6, a time relay works (which is arranged in the control box and is adjustable from 0.1S to 99H), the electromagnetic pneumatic valve 7 works, as the time relay can be set to be a delayed power-on time and a delayed power-off time, the electromagnetic pneumatic valve 7 is in a normally open state when the time relay is delayed and powered off, the compressed air is divided into two paths through a pipeline 11 to purge an, the sampling bypass is prevented from being blocked by the deposition of bulk materials, and the flow can be adjusted through the throttle valve 12. When the time relay is electrified in a delayed mode, the electromagnetic pneumatic valve closes the purging system through the fourth control loop 10, the pneumatic valve is opened, then bulk materials conveyed by pressure enter the sampling system through a sampling bypass pipeline 14 connected to a bulk material conveying main pipeline 13, and samples are blown into a sample collecting tank 15 of a breather valve 16 provided with a filter element by means of the bulk material conveying pressure. Wherein, the opening time and the cycle time of the electromagnetic pneumatic valve can be set between 0.1S and 99H, so as to determine the sampling amount; when the bulk materials in a batch are conveyed, the electric butterfly valve is closed, the first control loop 1 in the electric head 3 of the electric butterfly valve controls the intermediate relay to be powered off, so that all the loads below are stopped, and the batch sampling is finished.

In conclusion, the utility model is mainly suitable for continuous automatic sampling in large, medium and small cement plants, fly ash, dry raw meal, limestone powder and other bulk materials pneumatic conveying processes, and can be installed on the parts of powder material equipment such as conveying pipelines, ash pumps, bulk automobiles, bulk loading hoppers and the like. The sampler has the advantages of small volume, simple installation, convenient maintenance, reliable performance, strong dust resistance, intuitive and convenient control of sampling time, continuous 24-hour operation and being superior to the sampler with the same purpose in the market at present. The method fundamentally solves the problems of poor representativeness and dust emission of manual instantaneous sampling. Meanwhile, the labor intensity of a sampler is greatly reduced, and human intervention is avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a full-automatic unmanned on duty sampling device of bulk material which characterized in that includes: a sampling bypass pipeline (14) communicated with the bulk material conveying main pipeline (13); the controller (3) is arranged at the front end of the communication part of the bulk material conveying main pipeline (13) and the sampling bypass pipeline (14), and the controller (3) controls the suction of a relay in the control box (2) through the first control loop (1); the control box (2) controls the starting of the air compressor (4) through a second control loop (8) and controls the opening of the electromagnetic pneumatic valve through a third control loop (9), so that the air compressor (4) supplies air to the electromagnetic pneumatic valve (7) through a compressed air pipeline (6); the time relay with the functions of delaying the power-on time and delaying the power-off time is arranged in the control box (2), and when the time relay is in the delayed power-off state, the electromagnetic pneumatic valve is in a normally open state, so that compressed air is blown to an inlet and an outlet of the electromagnetic pneumatic valve (7) in two paths through a first pipeline (11) which is respectively communicated with the inlet and the outlet of the electromagnetic pneumatic valve (7) on two sides of the pipeline; when the time relay is in delayed energization, the electromagnetic pneumatic valve is closed and opened in a purging process through a fourth control loop (10), and then bulk materials conveyed by pressure enter the sampling device through a sampling bypass pipeline (14); and a sample collection tank (15) for collecting the sample blown by the bulk material delivery pressure.

2. The bulk material fully automatic unattended sampling device according to claim 1, wherein the controller preferably employs an electric butterfly valve.

3. The device for the fully automatic unattended sampling of bulk material according to claim 1, wherein the flow of compressed air is regulated by a throttle valve (12).

4. The automatic unattended sampling device for bulk materials according to claim 1, wherein a breather valve (16) of a filter element is installed in the sample collection tank.

5. The device for the fully automatic unattended sampling of bulk material according to claim 1, wherein the solenoid pneumatic valve (7) is preferably a 304 stainless steel pneumatic valve.