Closed material pumping device

Abstract

The utility model relates to the field of environmental protection facilities, in particular to a closed material pumping device which is characterized in that a lifting door is arranged between two adjacent box bodies, a conveying belt is arranged in the first box body, transmission rollers are arranged at the bottoms of the second box body to the sixth box body, and a lifting mechanism is arranged on the side edge of the transmission roller of the fourth box body. The lifting mechanism is provided with a material drawing head, the top of the second box body, the top of the fourth box body and the top of the sixth box body are each provided with an air inlet pipe and an air outlet pipe of a fresh air system, the top of the third box body and the top of the fourth box body are each provided with a nitrogen inlet pipe, and the top of the third box body, the top of the fourth box body, the top of the fifth box body and the top of the sixth box body are each provided with a nitrogen outlet pipe. According to the closed material pumping device, automatic metering is adopted, automatic material pumping is carried out in a closed environment, chemical materials are prevented from volatilizing outwards to pollute the environment, meanwhile, a fresh air system and a nitrogen system can be used for carrying out waste gas treatment on air in the closed environment, and the emission requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection facilities, in particular to a closed material extraction device. Background Art

[0002] In the field of fine chemicals, there are many types of chemicals with different storage styles. Bulk liquid raw materials are stored in tanks. The extraction and filling of small-volume scattered raw materials or various additives are done in the open air or in factories, especially some low-boiling point and volatile materials, which will have a certain impact on the environment. At present, for environmental protection, small-volume low-boiling point and volatile materials are also stored in tanks, but this increases costs and requires a larger operating space, which is difficult for small and medium-sized enterprises to meet. Utility Model Content

[0003] In order to solve the above technical deficiencies, the utility model provides a closed material extraction device, which can realize automatic extraction of small quantities of raw materials in a closed space, and is more environmentally friendly and safe.

[0004] The utility model discloses a closed material extraction device, comprising a first box body, a second box body, a third box body, a fourth box body, a fifth box body and a sixth box body which are connected in sequence, a lifting door is arranged between two adjacent boxes, a conveyor belt is arranged in the first box body, driving rollers are arranged at the bottoms of the second box body to the sixth box body, a gross weight measuring scale is arranged in the second box body close to the side of the third box body, a lifting mechanism is arranged on the side of the driving roller of the fourth box body, a material extraction head is arranged on the lifting mechanism, the material extraction head extends to the outside of the fourth box body through a pipeline and is connected to a conveying pump; a tare weight measuring scale is arranged inside the sixth box body; an air inlet pipe of a fresh air system is arranged on the top of the second box body, the fourth box body and the sixth box body, an air outlet pipe of the fresh air system is also arranged on the top of the second box body, the fourth box body and the sixth box body, a nitrogen inlet pipe is arranged on the top of the third box body and the fourth box body, and a nitrogen outlet pipe is arranged on the top of the third box body, the fourth box body, the fifth box body and the sixth box body.

[0005] A tail material coordinator is arranged in the fourth box body and is located just below the drawing head.

[0006] Conveying belts are arranged on the upper surfaces of the gross weight measuring scale, the tare weight measuring scale and the tail material coordinator.

[0007] The air outlet pipe and nitrogen outlet pipe of the fresh air system are both connected to a gas-solid phase separator, the top of the gas-solid phase separator is connected to a water washing tower, the water washing tower is connected to a water washing liquid circulation pump, the water washing tower is connected to an acid washing tower and / or an alkali washing tower, the acid washing tower is connected to an acid washing liquid circulation pump, the alkali washing tower is connected to an alkali washing liquid circulation pump, the acid washing tower and the alkali washing tower are both connected to a desorption tower, the desorption tower is connected to a desorption liquid circulation pump, the desorption tower is connected to a buffer tank, the buffer tank is connected to an exhaust gas booster, and the exhaust gas booster discharges the treated exhaust gas.

[0008] A resin adsorber and an activated carbon adsorber are arranged in sequence between the desorption tower and the buffer tank, and a resin adsorption liquid circulation pump is connected to the resin adsorber.

[0009] A jet washer is arranged on the sides of the second box to the sixth box at both ends of the transmission roller, and the jet washer is connected to a high-pressure water source. A receiving tray is arranged under the transmission roller inside the second box to the sixth box for receiving waste water after cleaning by the jet washer.

[0010] The utility model provides a closed material extraction device which adopts automatic metering and automatically extracts materials in a closed environment to prevent chemical materials from volatilizing outwards and polluting the environment. At the same time, the fresh air system and the nitrogen system can be used to treat the exhaust gas in the closed environment to meet the emission requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the first box body to the sixth box body of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the gas-solid phase separator to the tail gas supercharger of the utility model;

[0013] Figure 3 It is a schematic diagram of the structure inside the second box body of the utility model. DETAILED DESCRIPTION

[0014] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0015] Embodiment 1:

[0016] like Figure 1As shown, the utility model discloses a closed material extraction device, including a first box body 1, a second box body 2, a third box body 3, a fourth box body 4, a fifth box body 5 and a sixth box body 6 which are connected in sequence, a lifting door 13 is arranged between two adjacent boxes, a conveyor belt 7 is arranged in the first box body 1, a driving roller 8 is arranged at the bottom of the second box body 2 to the sixth box body 6, a gross weight measuring scale 9 is arranged in the second box body 2 near the side of the third box body 3, and a lifting mechanism 10 is arranged on the side of the driving roller 8 of the fourth box body 4, and a material extraction device is arranged on the lifting mechanism 10. Head 11, the extraction head 11 extends to the outside of the fourth box body 4 through a pipeline and is connected to a delivery pump; a tare weight measuring scale 12 is arranged inside the sixth box body 6; an air inlet pipe 14 of a fresh air system is arranged on the top of the second box body 2, the fourth box body 4 and the sixth box body 6, and an air outlet pipe 15 of a fresh air system is also arranged on the top of the second box body 2, the fourth box body 4 and the sixth box body 6; a nitrogen inlet pipe 16 is arranged on the top of the third box body 3 and the fourth box body 4, and a nitrogen outlet pipe 17 is arranged on the top of the third box body 3, the fourth box body 4, the fifth box body 5 and the sixth box body 6.

[0017] The first box body 1, the second box body 2, the third box body 3, the fourth box body 4, the fifth box body 5, and the sixth box body 6 are arranged end to end and arranged in a straight line. The conveyor belt 7 in the first box body 1 is connected with the transmission rollers 8 in the second box body 2 to the sixth box body 6 to form a conveying channel. When the lifting door 13 between adjacent boxes is closed downward, it is just above the transmission roller 8. Sensors can be set on both sides of the lifting door 13 to sense whether there are items on the conveyor belt 7 and the conveying roller to be transported through the lifting door 13. If there are items, the corresponding lifting door 13 is opened to allow the items to pass. This control form is all existing technology and will not be repeated. The gross weight measuring scale 9 in the second box body 2 is used to measure the weight of the input can, including the weight of the can itself and the material in the can. When the can is transported to the bottom of the extraction head 11, the lifting mechanism 10 drives the extraction head 11 to descend to the inside of the can, and the delivery pump pumps the material in the can to the designated area through the pipeline. After the extraction is completed, the lifting mechanism 10 drives the extraction hopper to be lifted above the can, and the can can continue to be transported forward to the sixth box 6, and the weight of the can is measured by the tare weighing scale 12, so as to obtain the weight of the extracted material. Of course, a lifting door 13 can also be provided on the side wall of the sixth box 6 away from the end of the fifth box 5, so as to facilitate the removal of the can.

[0018] The lifting mechanism 10 can use a combination of a cylinder and a slide rail to drive the material extraction head 11 to rise and fall. The specific structure of the lifting mechanism 10 is a prior art and is not limited. The material extraction head 11 can include a hose at one end and a branch pipe head arranged at the end of the hose, and a control valve is arranged between the branch pipe head and the hose.

[0019] The conveying roller is driven by a power mechanism to rotate at a constant speed.

[0020] The lifting mechanism 10, conveyor belt 7, conveying rollers, and lifting door 13 are all uniformly set and controlled by a controller. The specific control form and control method are all existing PLC control technologies and will not be described in detail.

[0021] The fresh air system and nitrogen system on the top of the box can recycle the volatilized gas or raw materials. If the material is slightly toxic or has a high VOCs content, except for manual operation of opening and closing the cover under fresh air state, the extraction and metering processes are all automatically carried out under low-pressure nitrogen (10-20kPaG), effectively protecting the safety of personnel.

[0022] Of course, the above solution can be used not only to extract materials from a tank, but also to fill empty tanks with materials, by simply reversing the direction in which the delivery pump delivers the materials.

[0023] During filling, the gross weight measuring scale 9 is used to weigh the weight of the empty can, while the tare weighing scale 12 weighs the sum of the weight of the can and the material inside, thereby obtaining the weight of the filled material.

[0024] A tail material coordinator 18 is provided in the fourth housing 4, and the tail material coordinator 18 is located directly below the extraction head 11. The tail material coordinator 18 is an existing known product, and its specific function is to fix the surface of the can. When the amount of material in the tube can is less than a certain value, its surface is tilted so that the extraction head 11 can extract the material in the can completely. As for the can fixing, a compressed cylinder or hydraulic cylinder can be provided on both sides to clamp and fix the can. The surface tilting can be connected to the base of the tail material coordinator 18 by a pin at one end of its surface, and the other end is pushed by an electric push rod, etc., so that it is tilted, and the above means can also be replaced by other means. The tilt angle of the tail material coordinator 18 is preferably 5-10°, and generally, 5° is sufficient. When extracting materials, after the tail material coordinator 18 tilts the can, the extraction head 11 can more easily extract the material in the can.

[0025] Conveyor belts are provided on the upper surfaces of the gross weight scale 9, the tare weight scale 12 and the tailings coordinator 18. The conveying platform on the surface is also driven by a motor, so that the cans on the transmission roller 8 can be moved to the gross weight scale 9, the tare weight scale 12 and the tailings coordinator 18 through the conveyor belt, and at the same time, the cans are moved from the gross weight scale 9, the tare weight scale 12 and the tailings coordinator 18 to the transmission roller 8 through the conveyor belt. The conveyor belt is butt-jointed with the transmission roller 8 to ensure stable and smooth movement of the material. The conveyor belt is annular, with guide rollers provided at both ends, and the conveyor belt is driven by the guide rollers. The specific structure will not be described in detail.

[0026] like Figure 2As shown, the air outlet pipe 15 and the nitrogen outlet pipe 17 of the fresh air system are both connected to a gas-solid phase separator 21, the top of the gas-solid phase separator 21 is connected to a water washing tower 22, the water washing tower 22 is connected to a water washing liquid circulation pump 23, the water washing tower 22 is connected to a pickling tower 24 and / or an alkali washing tower 26, the pickling tower 24 is connected to a pickling liquid circulation pump 25, the alkali washing tower 26 is connected to an alkali washing liquid circulation pump 27, the pickling tower 24 and the alkali washing tower 26 are both connected to a desorption tower 28, the desorption tower 28 is connected to a desorption liquid circulation pump 29, the desorption tower 28 is connected to a buffer tank 33, the buffer tank 33 is connected to an exhaust gas booster 34, and the exhaust gas booster 34 discharges the treated exhaust gas.

[0027] The tail gas outputted from the air outlet pipe 15 of the fresh air system and the nitrogen outlet pipe 17 of the nitrogen system first passes through the gas-solid phase separator 21 to separate the solids, and the gas enters the water washing tower 22 for water washing. The washed gas is treated by the acid washing tower 24 and / or the alkali washing tower 26, and then treated by the desorption tower 28 to meet the standards before being discharged by the tail gas booster 34. Of course, for different volatiles, only the acid washing tower 24 or only the alkali washing tower 26 can be selected, or the acid washing tower 24 and the alkali washing tower 26 can be connected in series, or multiple stages of acid washing towers 24 and multiple stages of alkali washing towers 26 can be connected in series.

[0028] A resin adsorber 30 and an activated carbon adsorber 32 are sequentially arranged between the desorption tower 28 and the buffer tank 33, and a resin adsorption liquid circulation pump 31 is connected to the resin adsorber 30. The resin adsorber 30 and the activated carbon adsorber 32 can be selected according to actual needs to improve the effect of exhaust gas treatment and meet emission requirements.

[0029] like Figure 3 As shown, a jetting material washer 20 is provided on the side of the second box 2 to the sixth box 6 at both ends of the transmission roller 8. The jetting material washer 20 is connected to a high-pressure water source. A receiving tray 19 is provided below the transmission roller 8 inside the second box 2 to the sixth box 6 for receiving the waste water after the jetting material washer 20 washes. The jetting material washer 20 is a nozzle that sprays high-pressure water to wash the equipment. The receiving tray 19 can be connected to the waste water storage area through a pipeline. In actual use, when material leakage occurs during the process of drawing materials, filling, etc., the leaked material is rinsed and collected for subsequent reuse.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an interactive relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simplified modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A closed pumping device, characterized in that: It comprises a first box body, a second box body, a third box body, a fourth box body, a fifth box body and a sixth box body which are connected in sequence, a lifting door is arranged between two adjacent boxes, a conveyor belt is arranged in the first box body, driving rollers are arranged at the bottoms of the second box body to the sixth box body, a gross weight scale is arranged in the second box body close to the third box body, a lifting mechanism is arranged on the side of the driving roller of the fourth box body, a drawing head is arranged on the lifting mechanism, the drawing head extends to the outside of the fourth box body through a pipeline and is connected to a conveying pump; a tare weight scale is arranged inside the sixth box body; an air inlet pipe of a fresh air system is arranged on the top of the second box body, the fourth box body and the sixth box body, an air outlet pipe of a fresh air system is also arranged on the top of the second box body, the fourth box body and the sixth box body, a nitrogen inlet pipe is arranged on the top of the third box body and the fourth box body, and a nitrogen outlet pipe is arranged on the top of the third box body, the fourth box body, the fifth box body and the sixth box body.

2. A closed material extraction device according to claim 1, characterized in that: A tail material coordinator is arranged in the fourth box body and is located just below the drawing head.

3. A closed material extraction device according to claim 2, characterized in that: Conveying belts are arranged on the upper surfaces of the gross weight measuring scale, the tare weight measuring scale and the tail material coordinator.

4. A closed material extraction device according to claim 1, 2 or 3, characterized in that: The air outlet pipe and nitrogen outlet pipe of the fresh air system are both connected to a gas-solid phase separator, the top of the gas-solid phase separator is connected to a water washing tower, the water washing tower is connected to a water washing liquid circulation pump, the water washing tower is connected to an acid washing tower and / or an alkali washing tower, the acid washing tower is connected to an acid washing liquid circulation pump, the alkali washing tower is connected to an alkali washing liquid circulation pump, the acid washing tower and the alkali washing tower are both connected to a desorption tower, the desorption tower is connected to a desorption liquid circulation pump, the desorption tower is connected to a buffer tank, the buffer tank is connected to an exhaust gas booster, and the exhaust gas booster discharges the treated exhaust gas.

5. A closed material extraction device according to claim 4, characterized in that: A resin adsorber and an activated carbon adsorber are arranged in sequence between the desorption tower and the buffer tank, and a resin adsorption liquid circulation pump is connected to the resin adsorber.

6. A closed material extraction device according to claim 1, characterized in that: A jet washer is arranged on the sides of the second box to the sixth box at both ends of the transmission roller, and the jet washer is connected to a high-pressure water source. A receiving tray is arranged under the transmission roller inside the second box to the sixth box for receiving waste water after cleaning by the jet washer.

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