CN111762576A

CN111762576A - Sample material discharge method and device and detection system

Info

Publication number: CN111762576A
Application number: CN202010688583.7A
Authority: CN
Inventors: 戴波; 刘克俭; 卢兴福
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-10-13

Abstract

The invention relates to the technical field of metallurgical equipment, in particular to a sample material discharge method, a sample material discharge device and a detection system. This sample material discharging equipment includes feed inlet and bin outlet, and the device still includes: at least one gas-solid separation mechanism connected between the feed inlet and the discharge outlet; the negative pressure generating mechanism is communicated with the gas-solid separation mechanism and is used for enabling the interior of the gas-solid separation mechanism to form a negative pressure environment; and the sealing cover is arranged between the gas-solid separation mechanism and the discharge opening, is in a closed state under the action of a negative pressure environment, separates the gas-solid separation mechanism from the discharge opening, and is in an open state under the condition that the negative pressure environment disappears and is communicated with the gas-solid separation mechanism and the discharge opening. The invention can improve the operation efficiency of the device and simplify the maintenance and repair process of the device, thereby improving the production and sample detection efficiency.

Description

Sample material discharge method and device and detection system

Technical Field

The invention relates to the technical field of metallurgical equipment, in particular to a sample material discharge method, a sample material discharge device and a detection system.

Background

In the present ferrous metallurgy industry, to raw materials analysis and detection, all adopt artifical or sampling device regularly to gather raw materials sample, artifical transportation to the laboratory again detects, detects the back, artificially pours the waste material into again and piles up in the waste bin, and follow-up concentrating is handled through artifical transport. Whole raw materials analysis testing process is wasted time and energy, and 2 minutes to 3 minutes gather a data and detect usually, and artifical transport is wasted time and energy, and is unfavorable for steel production automation.

With the progress of science and technology, modern steel production workshops need to gradually establish online real-time automatic detection equipment, and detection data are used for feeding back and adjusting production parameters in real time. The material detection relates to the discharge of sample materials, the material quantity detected in real time is correspondingly large, and the discharge of the sample materials cannot be operated manually, so that how to automatically discharge and collect the detected sample materials quickly and efficiently is the key for realizing online detection and improving the detection efficiency.

In the non-metallurgical industry, a conveying device for conveying granular materials through airflow exists, and the conveying device can realize automation through certain detection and circuit control. However, the existing conveying device has some problems correspondingly, such as: the material particles are easy to adhere to the filter screen, and the smaller the particle size of the discharged material particles is, the more easily the conveying device is blocked; and in the process of cleaning the filter screen, the device in a long-time running state is easy to cause unsmooth airflow, so that the normal running of the equipment is influenced, and the filter screen is required to be dismounted and replaced when the machine is stopped for a long time.

Therefore, the existing material discharge device has the problems of low device operation efficiency and complex maintenance and repair process, thereby seriously influencing the production and sample detection efficiency.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Therefore, the invention provides a sample material discharging device, which aims to solve the problems that the existing material discharging device has low device operation efficiency and complex maintenance and repair process, so that the production and sample detection efficiency is seriously influenced.

The invention also provides a detection system.

The invention also provides a sample material discharge method.

According to an embodiment of the first aspect of the present invention, a sample material discharging apparatus includes a feeding port and a discharging port, and further includes:

the gas-solid separation mechanism is connected between the feed port and the discharge port;

the negative pressure generating mechanism is communicated with the gas-solid separation mechanism and is used for enabling the inside of the gas-solid separation mechanism to form a negative pressure environment;

the sealed lid, set up in gas-solid separating mechanism with between the bin outlet, sealed lid is used for be in closed condition and cut off under the negative pressure environment effect gas-solid separating mechanism with the bin outlet, and be in open mode and communicate under the condition that negative pressure environment disappears gas-solid separating mechanism with the bin outlet.

According to one embodiment of the invention, the gas-solid separation mechanism comprises a separation cavity, the top of the separation cavity is respectively communicated with the feed inlet and the negative pressure generation mechanism, the bottom of the separation cavity is connected with the discharge outlet, and the sealing cover is movably connected to the bottom of the separation cavity and is positioned between the separation cavity and the discharge outlet; the side wall of the separation cavity is gradually reduced from the top to the bottom, so that the inside of the separation cavity forms spiral airflow in a negative pressure environment.

According to an embodiment of the present invention, the gas-solid separation mechanism further includes a tuyere, a first opening and a second opening, the tuyere and the second opening are respectively and oppositely disposed at the top and the bottom of the separation chamber along the axial direction of the separation chamber, the first opening is configured at the top of the separation chamber and beside the tuyere, the tuyere is communicated with the negative pressure generation mechanism, the first opening is communicated with the feed port, and the second opening is connected with the discharge port; the sealing cover is connected to the second opening in a pivoting mode through a rotating shaft, a push rod mechanism is arranged at the bottom of the sealing cover, the extending end of the push rod mechanism faces the bottom of the sealing cover, and the extending end of the push rod mechanism can push the sealing cover to be closed at the second opening in an extending state.

According to one embodiment of the invention, the device further comprises a material conveying pipe and a material guide pipe, wherein the material conveying pipe is connected between the gas-solid separation mechanism and the feeding hole, and is communicated with the material conveying pipe through the feeding hole; the inner diameter of the material guide pipe is smaller than that of the material conveying pipe.

According to one embodiment of the invention, one end of the material guide pipe is communicated with the feeding hole, and the other end of the material guide pipe is provided with a suction nozzle which is used for sucking sample materials into the material guide pipe.

According to one embodiment of the invention, the vacuum cleaner further comprises a dust removal filter screen, and the dust removal filter screen is communicated with the negative pressure generating mechanism.

According to one embodiment of the invention, the dust-proof bag is sleeved on the discharge opening.

According to one embodiment of the invention, the number of the gas-solid separation mechanisms is two or more, and each gas-solid separation mechanism is connected in parallel or sequentially connected in series between the feed port and the discharge port.

A testing system according to an embodiment of the second aspect of the present invention comprises a first conveying mechanism, a second conveying mechanism, and the sample material discharging device as described above, wherein the feeding port of the sample material discharging device is connected with the first conveying mechanism, and the discharging port of the sample material discharging device is connected with the second conveying mechanism.

A sample material discharge method according to an embodiment of the third aspect of the present invention is performed by the sample material discharge apparatus as described above, or by the detection system as described above;

the sample material discharge method includes:

driving a negative pressure generating mechanism to operate so as to enable the interior of the gas-solid separation mechanism to form a negative pressure environment, and closing and isolating the gas-solid separation mechanism and the discharge opening by a sealing cover under the action of the negative pressure environment;

and driving the negative pressure generating mechanism to stop so as to open the sealing cover and communicate the gas-solid separation mechanism with the discharge opening.

One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

the sample material discharge device of the embodiment of the invention comprises a feed inlet and a discharge outlet, and the device also comprises: at least one gas-solid separation mechanism connected between the feed inlet and the discharge outlet; the negative pressure generating mechanism is communicated with the gas-solid separation mechanism and is used for enabling the interior of the gas-solid separation mechanism to form a negative pressure environment; and the sealing cover is arranged between the gas-solid separation mechanism and the discharge opening, is in a closed state in a negative pressure environment, separates the gas-solid separation mechanism from the discharge opening, and is communicated with the gas-solid separation mechanism and the discharge opening in an open state. In other words, the device can realize the gas-solid separation of the gas-solid separation mechanism on the sample by arranging the negative pressure environment in the gas-solid separation mechanism, and can drive the sealing cover to be automatically closed in the negative pressure environment and be automatically opened after the negative pressure environment disappears. It is thus clear that compared with the prior art, the device can both realize that sealed lid is automatic between open mode and closed state automatic switch through the inside negative pressure environment of control gas-solid separating mechanism to can guarantee to cut off between gas-solid separating mechanism and the bin outlet again when sample material receives the negative pressure effect and is inhaled gas-solid separating mechanism, so that sample material can remain sufficient time and receive abundant gas-solid separation effect inside gas-solid separating mechanism. Therefore, compared with the prior art, the device can improve the operation efficiency of the device, simplify the maintenance and repair process of the device and further improve the production and sample detection efficiency.

The detection system comprises the first conveying mechanism, the second conveying mechanism and the sample material discharging device, wherein a feeding hole of the sample material discharging device is connected with the first conveying mechanism, and a discharging hole of the sample material discharging device is connected with the second conveying mechanism. Through setting up above-mentioned sample material discharging equipment for this detecting system has above-mentioned sample material discharging equipment's whole advantage, and it is no longer repeated here.

A sample material discharge method of an embodiment of the present invention is performed by the sample material discharge apparatus as described above, or by the detection system as described above; the sample material discharging method comprises the following steps: driving a negative pressure generating mechanism to operate so as to enable the interior of the gas-solid separation mechanism to form a negative pressure environment, and closing and isolating the gas-solid separation mechanism and the discharge opening by a sealing cover under the action of the negative pressure environment; and driving the negative pressure generating mechanism to stop so as to open the sealing cover and communicate the gas-solid separation mechanism with the discharge port. Compared with the prior art, the method can realize the automatic switching of the sealing cover between the opening state and the closing state by controlling the opening and closing of the negative pressure environment in the gas-solid separation mechanism, and can ensure the disconnection between the gas-solid separation mechanism and the discharge port when sample materials are sucked into the gas-solid separation mechanism under the action of negative pressure, so that the sample materials can stay in the gas-solid separation mechanism for enough time to be subjected to sufficient gas-solid separation; and, can also open and close the negative pressure environment through the circulation, and make whole device get the material, separate and arrange the three processes of material and switch over in proper order. Therefore, compared with the prior art, the method can improve the operation efficiency of the device and the system, simplify the maintenance and repair process of the device, and improve the production and sample detection efficiency.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more 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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the operation of a sample material discharge apparatus in a detection system according to an embodiment of the present invention;

FIG. 2 is a front view of a sample material discharge apparatus according to an embodiment of the present invention;

fig. 3 is a side view of a sample material discharge apparatus according to an embodiment of the present invention.

Reference numerals:

1: a first conveying mechanism; 2: a suction nozzle; 3: a material guide pipe;

4: a sample material discharge device (simply referred to as "device"); 401: a gas-solid separation mechanism; 402: a negative pressure generating mechanism; 403: a dust removal filter screen; 404: a discharge pipe; 405: a push rod mechanism; 406: a sealing cover; 407: a fixed mount; 408: a dust bag; 409: a delivery pipe;

5: a support frame; 6: a second conveying mechanism; 7: discharging the materials.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in fig. 1 to 3, the embodiment of the present invention provides a sample material discharge apparatus 4 (simply referred to as "apparatus" in the embodiment of the present invention). The device 4 can improve the operation efficiency of the device 4 and simplify the maintenance and repair process of the device 4, thereby improving the production and sample detection efficiency. Based on the device 4, the present invention also provides a detection system (referred to as "system" in the embodiment of the present invention) and a sample material discharge method (referred to as "method" in the embodiment of the present invention).

Specifically, as shown in FIG. 1, the device 4 includes a feed inlet and a discharge outlet. The feed opening can communicate with a discharge station arranged outside the sample material discharge device 4 so that sample material located at the discharge station is fed into the device 4 through the feed opening. The discharge opening is used for discharging the detection sample subjected to gas-solid separation from the device 4.

As shown in fig. 1 and 2, the apparatus 4 further comprises at least one gas-solid separation mechanism 401, a negative pressure generating mechanism 402 and a sealing cover 406. The gas-solid separation mechanism 401 is connected between the feed inlet and the discharge outlet, and the gas-solid separation mechanism 401 is used for carrying out gas-solid separation on the sample materials. The negative pressure generating means 402 communicates with the gas-solid separating means 401, and the negative pressure generating means 402 is used to form a negative pressure environment inside the gas-solid separating means 401. The negative pressure environment inside the gas-solid separation mechanism 401 can form strong airflow passing through the feed port, so that the sample material is sucked into the gas-solid separation mechanism 401 through the feed port under the action of the strong airflow; and contain the granule dust in the sample material through the testing phase usually, and the sample material can have a large amount of dust particles to sneak into the air current under the effect of strong air current, and this gas-solid separating mechanism 401 can carry out the gas-solid separation with the sample material to prevent that the dust of sneaking into in the air current from causing the hindrance to the operation of device 4, improve the security of device 4 operation.

In order to improve the operation efficiency and safety of the apparatus 4, an openable and closable seal cover 406 is provided between the gas-solid separation mechanism 401 and the discharge port of the apparatus 4. The sealing cover 406 is used for being in a closed state and separating the gas-solid separation mechanism 401 from the discharge port under the action of the negative pressure environment, and is in an open state and communicating the gas-solid separation mechanism 401 with the discharge port under the condition that the negative pressure environment disappears. In other words, the device 4 can realize gas-solid separation of the sample by the gas-solid separation mechanism 401 by providing a negative pressure environment inside the gas-solid separation mechanism 401, and can drive the sealing cover 406 to be automatically closed in the negative pressure environment and to be automatically opened after the negative pressure environment disappears. Because the sealing cover 406 can be sealed and isolated between the gas-solid separation mechanism 401 and the discharge opening in the closed state, the negative pressure environment in the gas-solid separation mechanism 401 can be prevented from acting on the discharge opening of the device 4, so that the discharged material 7 discharged from the device 4 is sucked back into the gas-solid separation mechanism 401 by the negative pressure, and the normal operation and the operation safety of the device 4 are influenced.

It can be seen that the device 4 can control the negative pressure environment inside the gas-solid separation mechanism 401, so that the sealing cover 406 can be automatically switched between the open state and the closed state, and the separation between the gas-solid separation mechanism 401 and the discharge opening can be ensured when the sample material is sucked into the gas-solid separation mechanism 401 under the negative pressure, so that the sample material can stay inside the gas-solid separation mechanism 401 for a sufficient time to be subjected to the sufficient gas-solid separation effect.

It is understood that the negative pressure generating mechanism 402 according to the embodiment of the present invention may be a blower. And because the negative pressure generating mechanism 402 may contact a small amount of particulate sample material, it is preferable to use an anti-wear blade for the fan blades.

It is understood that the number of the gas-solid separation means 401 may be two or more. In order to increase the discharge amount, it is preferable that a plurality of gas-solid separation means 401 are connected in parallel between the feed port and the discharge port. Further, a plurality of gas-solid separation mechanisms 401 may be connected in parallel to the same negative pressure generation mechanism 402 to synchronously drive the air flow, or each gas-solid separation mechanism 401 may be provided to correspond to one negative pressure generation mechanism 402. In addition, in order to improve the gas-solid separation effect, a plurality of gas-solid separation mechanisms 401 can be preferably connected in series and communicated between the feed inlet and the discharge outlet, and an ideal separation state is achieved through multi-stage separation.

In one embodiment, as shown in FIG. 2, the gas-solids separation mechanism 401 comprises a separation chamber. The top of the separation chamber is respectively communicated with the feed inlet and the negative pressure generating mechanism 402, and the bottom of the separation chamber is connected with the discharge outlet. It connects the top and the bottom at the separation chamber to prefer negative pressure generation mechanism 402 and bin outlet along the axial of separation chamber respectively, thereby make negative pressure generation mechanism 402 can follow the axial of separation chamber and bleed, thereby form the negative pressure environment in with the separation chamber, with sealed lid 406 along the bottom of axial adsorption airtight at the separation chamber, thereby utilize sealed lid 406 under the closed condition to cut off between separation chamber and the bin outlet, and then guarantee that the sample material in the separation chamber can be retained in the separation chamber, with the duration of extension gas-solid separation, improve the effect of gas-solid separation.

In one embodiment, the sidewalls of the separation chamber taper from top to bottom to create a helical flow of gas within the separation chamber in a sub-atmospheric environment. The spiral gas flow can drive the sample material in the separation cavity to make a spiral circular motion, thereby realizing gas-solid separation of the sample material (the gas-solid separation process is explained in detail in the following content, and is not described herein again).

It will be appreciated that the apparatus 4 further comprises a feed conveyor 409 and a guide duct 3. The material conveying pipe 409 is connected between the gas-solid separation mechanism 401 and the material inlet, and the material conveying pipe 3 is communicated with the material conveying pipe 409 through the material inlet. In other words, the guide duct 3 and the feed duct 409 communicate with each other at both sides of the feed opening. The inner diameter of the material guide pipe 3 is smaller than that of the material conveying pipe 409. Preferably, one end of the material guide pipe 3 is communicated with the material inlet, and the other end of the material guide pipe 3 is provided with a suction nozzle 2, wherein the suction nozzle 2 is used for sucking sample materials into the material guide pipe 3.

The device 4 is able to drive the suction nozzle 2 into the test container when it arrives at the discharge station. The negative pressure generating mechanism 402 is turned on to generate a negative pressure environment in the gas-solid separating mechanism 401, and a strong airflow is generated in the material guiding pipe 3 communicated with the gas-solid separating mechanism 401 through the material conveying pipe 409. The strong air flow can generate air flow impact disturbance materials in the detection container through the opening on the suction nozzle 2, so that the sample materials are sucked into the material guide pipe 3 along with the air flow from the detection container. Next, the material enters the gas-solid separation mechanism 401 through the material guiding pipe 3 and the material conveying pipe 409 along with the airflow, because the inner diameter of the material guiding pipe 3 is smaller than the inner diameter of the material conveying pipe 409, and the inner diameter of the material conveying pipe 409 is obviously smaller than the inner diameter of the separation cavity of the gas-solid separation mechanism 401, that is, the inner space of the gas-solid separation mechanism 401 is larger than the space of the material guiding pipe 3, the flowing speed of the airflow is correspondingly gradually reduced, and the material conveying pipe 409 can be used as a buffer pipe between the material guiding pipe 3 and the gas-solid separation mechanism 401. The gas-solid separation mechanism 401 has the advantages that the gas flow changes from linear motion to circular motion in the separation cavity, most of the rotating gas flow spirally downwards along the inner wall of the separation cavity, centrifugal force is generated in the rotating process, and granular or dust-shaped materials with relative density higher than that of the gas are thrown to the inner wall surface of the separation cavity. Once in contact with the wall of the separation chamber, the material loses its radial inertia and falls down the wall by virtue of downward momentum and gravity. When the airflow reaches a certain position at the lower end of the cone of the separation cavity, the airflow rotates from bottom to top in the same rotation direction from the middle part of the separation cavity to continue to make spiral motion, and gas-solid separation is completed. Finally, the gas flows back from the top of the gas-solid separation mechanism 401 to the negative pressure generation mechanism 402.

In one embodiment, the gas-solid separation mechanism 401 further comprises a tuyere, a first opening and a second opening. The tuyere is communicated with the negative pressure generating mechanism 402, the first opening is communicated with the feed inlet, and the second opening is connected with the discharge outlet. The air port and the second opening are oppositely formed at the top and the bottom of the separation cavity along the axial direction of the separation cavity respectively, the negative pressure generating mechanism 402 extracts air through the air port, so that negative pressure air flow is formed in the separation cavity along the axial direction of the separation cavity, the negative pressure air flow is prompted to form outer side spiral descending air flow rotating along the inner wall of the separation cavity due to the side wall structure of the separation cavity, inner side spiral ascending air flow spirally ascending along the axial direction of the separation cavity is formed, the sample material is driven to do circular motion in the separation cavity, dust particles contained in the air flow continuously impact the inclined side wall of the separation cavity to fall, and the air flow finally returns to the negative pressure generating mechanism 402 through the air port, so that gas-solid separation of the sample material. The first opening is configured at the top of the separation chamber and beside the tuyere. So that the negative pressure generating mechanism 402 can also generate suction on the feed port to drive the sample material to be automatically sucked into the separation chamber. And the first opening is adjacent to the air port, so that the sample material in a gas-solid mixing state entering the separation cavity can be influenced by the spiral airflow more quickly to move circularly in the separation cavity, and the gas-solid separation efficiency is accelerated.

In one embodiment, seal cover 406 is pivotally attached to the bottom of the separation chamber between the separation chamber and the discharge outlet to allow for opening and closing of seal cover 406 by rotation of seal cover 406 relative to the bottom of the separation chamber.

In one embodiment, as shown in FIG. 3, the seal cover 406 is pivotally connected to the second opening by a pivot shaft. The sealing cover 406 is in a closed state (i.e., a closed state) when the device 4 works, that is, the sealing cover 406 is pushed by the push rod mechanism 405 to be closed at the second opening, and is sealed and fixed between the gas-solid separation mechanism 401 and the discharge opening under the action of the negative pressure environment of the gas-solid separation mechanism 401, thereby realizing the sealing of the gas-solid separation mechanism 401. When the device 4 discharges, the sealing cover 406 can be switched to an open state, so that the sample material in the gas-solid separation mechanism 401 is discharged through the discharge port.

In one embodiment, as shown in fig. 3, a push rod mechanism 405 is provided at the bottom of the sealing cover 406, and the opening and closing are realized by the push rod mechanism 405. The protruding end of the pushing rod mechanism 405 is disposed toward the bottom of the sealing cover 406, and the protruding end of the pushing rod mechanism 405 can push the sealing cover 406 to close the second opening in the protruding state.

Specifically, when the negative pressure generating mechanism 402 is started, the push rod mechanism 405 is powered on to be started, the extending end of the push rod mechanism 405 extends towards the sealing cover 406, the sealing cover 406 is pushed to be closed at the second opening, then the push rod mechanism 405 is powered off and retracts, due to the influence of the negative pressure environment in the gas-solid separation mechanism 401, the sealing cover 406 is adsorbed at the second opening of the gas-solid separation mechanism 401, so that the bottom of the gas-solid separation mechanism 401 is sealed, and the sample material is conveniently contained; after the sample materials completely enter the gas-solid separation mechanism 401 and complete sufficient gas-solid separation, the negative pressure generation mechanism 402 is closed to make the negative pressure environment in the gas-solid separation mechanism 401 disappear, and the sealing cover 406 can rotate and turn outwards along the rotating shaft under the action of the weight block arranged on the sealing cover 406 and the gravity of the sample materials stacked on the sealing cover 406 in the gas-solid separation mechanism 401, so that the sealing cover 406 is opened to realize material discharge.

In one embodiment, in order to further improve the gas-solid separation effect of the gas-solid separation mechanism 401 on the sample material and promote the gas-solid separation effect of the sample material to reach 100%, the apparatus 4 further includes a dust removing filter 403, and the dust removing filter 403 is communicated with the negative pressure generating mechanism 402. The dust removal screen 403 is capable of filtering out small amounts of dust entrained by the airflow. The number of the dust removing filter screens 403 can be multiple, one of the dust removing filter screens 403 can be periodically cleaned in sequence, and the operation can be performed without stopping. And, the dust removal filter screen 403 can be reused after being cleaned.

In one embodiment, the material is discharged from the discharge opening and directly falls onto the second conveying mechanism 6, and in order to prevent dust from flying during the discharging process, the device 4 further comprises a dust bag 408, and the dust bag 408 is sleeved on the discharge opening. Preferably, the discharge opening is communicated with a discharge pipe 404, a dust bag 408 is sleeved at the tail end of the discharge pipe 404, and the other end of the dust bag 408 falls on the discharged material 7 on the second conveying mechanism 6.

It can be understood that the device 4 further comprises a fixing frame 407, the gas-solid separation mechanism 401 is vertically fixed in the fixing frame 407, the negative pressure generating mechanism 402 is installed at the top of the fixing frame 407, and the dust removing filter screen 403 is arranged in the fixing frame 407 and located on one side of the gas-solid separation mechanism 401. The inlet of the device 4 is located on the side wall of the fixed frame 407, and the outlet is located at the bottom of the fixed frame 407.

Based on the above device 4, a detection system according to an embodiment of the present invention. As shown in fig. 1, the system comprises a first conveyor mechanism 1, a second conveyor mechanism 6 and a sample material discharge device 4 as described above. The first transport mechanism 1 is configured as described above to transport the inspection containers to the discharge station. The second conveying means 6 are preferably arranged below the discharge opening of the device 4. The feed inlet of the sample material discharge device 4 is connected with the first conveying mechanism 1, and the discharge outlet of the sample material discharge device 4 is connected with the second conveying mechanism 6. By providing the sample material discharging device 4, the detection system has all the advantages of the sample material discharging device 4, which will not be described herein.

It can be understood that the first conveying mechanism 1 according to the embodiment of the present invention is disposed at the discharging station located outside the sample material discharging device 4, and the first conveying mechanism 1 is used to transport the detection container carrying the detected sample material discharged from the previous process (e.g. the detection device) to the discharging station, so that the device 4 of the present system can suck the sample material from the detection container into the device 4 through the suction nozzle 2 at the end of the material guiding pipe 3, and discharge the sample material to the second conveying mechanism 6 after gas-solid separation.

In order to optimize the system structure reasonably and save space better, the system preferably further comprises a support frame 5, the device 4 is fixed on the support frame 5, and the second conveying mechanism 6 is arranged below the support frame 5, so that the second conveying mechanism 6 can be correspondingly arranged right below a discharge port of the device 4, and overflow and scattering of materials during discharging are prevented.

It will be appreciated that the second conveying mechanism 6 described above may be a belt conveyor.

A sample material discharge method of an embodiment of the present invention is performed by the sample material discharge apparatus 4 as described above, or by the detection system as described above; the sample material discharging method comprises the following steps: driving a negative pressure generating mechanism 402 to operate so as to form a negative pressure environment inside the gas-solid separation mechanism 401, and closing and isolating the gas-solid separation mechanism 401 and the discharge opening by a sealing cover 406 under the action of the negative pressure environment; and driving the negative pressure generating mechanism 402 to stop so that the sealing cover 406 is opened to communicate the gas-solid separating mechanism 401 with the discharge port. Compared with the prior art, the method can realize the automatic switching of the sealing cover 406 between the opening state and the closing state by controlling the opening and closing of the negative pressure environment inside the gas-solid separation mechanism 401, and can ensure the disconnection between the gas-solid separation mechanism 401 and the discharge port when the sample material is sucked into the gas-solid separation mechanism 401 under the action of negative pressure, so that the sample material can stay inside the gas-solid separation mechanism 401 for enough time to be subjected to sufficient gas-solid separation; and, can also open and close the negative pressure environment through the circulation, and make whole device 4 get the material, separate and arrange the three process of material and switch over in proper order. It can be seen that the method can improve the operating efficiency of the apparatus 4 and system, simplify the maintenance and repair process of the apparatus 4, and improve the production and sample testing efficiency, as compared to the prior art.

Based on the above-mentioned apparatus 4, system and method, the embodiment of the present invention provides a specific implementation process, so as to describe the implementation process of the apparatus 4, system and method in detail.

Specifically, when the system detects that the detection container is conveyed to the suction nozzle 2 by the first conveying mechanism 1, the device 4 is powered and starts to work. Firstly, the negative pressure generating mechanism 402 is opened, then the push rod mechanism 405 is electrified and extends the extending end to the front top so as to push and close the sealing cover 406, then the push rod mechanism 405 is powered off and the extending end is retracted, and the sealing cover 406 is adsorbed, sealed and fixed between the gas-solid separation mechanism 401 and the discharge port under the action of the negative pressure environment. After the device 4 starts to work, the sample materials in the detection container are continuously conveyed to the gas-solid separation mechanism 401 through the material guide pipe 3 along with the airflow for gas-solid separation. In the gas-solid separation process, sample materials are continuously accumulated at the bottom of the gas-solid separation mechanism 401. The operating time of the device 4 can be determined according to the actual situation. After the sample material in the detection container is emptied, the negative pressure generating mechanism 402 is closed, the sealing cover 406 is reopened due to gravity, and the sample material in the gas-solid separation mechanism 401 falls into the discharging pipe 404 and falls onto the second conveying mechanism 6 through the dust bag 408 to be returned to the industrial production line again. The device 4 can be operated to and fro in the above-described process cycle.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Claims

1. The utility model provides a sample material discharging equipment, includes feed inlet and bin outlet, its characterized in that still includes:

2. The sample material discharging device according to claim 1, wherein the gas-solid separating mechanism comprises a separating chamber, the top of the separating chamber is respectively communicated with the feeding port and the negative pressure generating mechanism, the bottom of the separating chamber is connected with the discharging port, and the sealing cover is movably connected to the bottom of the separating chamber and is positioned between the separating chamber and the discharging port; the side wall of the separation cavity is gradually reduced from the top to the bottom, so that the inside of the separation cavity forms spiral airflow in a negative pressure environment.

3. The sample material discharging device according to claim 2, wherein the gas-solid separating means further comprises a tuyere, a first opening and a second opening, the tuyere and the second opening are oppositely disposed at the top and the bottom of the separation chamber along the axial direction of the separation chamber, respectively, the first opening is configured at the top of the separation chamber and located beside the tuyere, the tuyere is communicated with the negative pressure generating means, the first opening is communicated with the feed port, and the second opening is connected with the discharge port;

the sealing cover is connected to the second opening in a pivoting mode through a rotating shaft, a push rod mechanism is arranged at the bottom of the sealing cover, the extending end of the push rod mechanism faces the bottom of the sealing cover, and the extending end of the push rod mechanism can push the sealing cover to be closed at the second opening in an extending state.

4. The sample material discharging device according to claim 1, further comprising a feeding pipe and a material guiding pipe, wherein the feeding pipe is connected between the gas-solid separation mechanism and the feeding port, and the material guiding pipe is communicated with the feeding pipe through the feeding port; the inner diameter of the material guide pipe is smaller than that of the material conveying pipe.

5. The sample material discharging device according to claim 4, wherein one end of the material guiding pipe is communicated with the material inlet, and a suction nozzle is installed at the other end of the material guiding pipe, and the suction nozzle is used for sucking the sample material into the material guiding pipe.

6. The sample material discharge device according to claim 1, further comprising a dust screen in communication with the negative pressure generating mechanism.

7. The sample material discharge apparatus according to claim 1, further comprising a dust bag, wherein the dust bag is fitted over the discharge opening.

8. The sample material discharging device according to any one of claims 1 to 7, wherein the number of the gas-solid separation mechanisms is two or more, and each of the gas-solid separation mechanisms is connected in parallel or sequentially connected in series between the feed port and the discharge port.

9. A testing system comprising a first conveyor means, a second conveyor means and a sample material discharge apparatus as claimed in any one of claims 1 to 8, the inlet of the sample material discharge apparatus being connected to the first conveyor means and the outlet of the sample material discharge apparatus being connected to the second conveyor means.

10. A sample material discharge method, characterized by being performed by the sample material discharge apparatus according to any one of claims 1 to 8, or by the detection system according to claim 9;

the sample material discharge method includes: