Anti-overflow bin weighing device for activated carbon production

Abstract

The utility model provides an anti-overflow stock bin weighing device for activated carbon production. The anti-overflow stock bin weighing device comprises a conveying belt, an interlayer type flaring hopper, an anti-overflow bin and an anti-overflow bin. The interlayer type flaring hopper is located below the discharging end of the conveying belt. The sleeve type double discharging pipes are connected to the bottom of the interlayer type flaring hopper; the high-precision weighing sensor is arranged in the sleeve type double discharge pipe; the fan-shaped gate plate is arranged at the top of the interlayer in the interlayer type flaring hopper; and the symmetrical four-bar linkage mechanism is arranged between the adjacent fan-shaped gate plates. According to the anti-overflow bin weighing device for activated carbon production, through the arrangement of the interlayer type flaring hopper, overflow materials after caking and blocking are collected, the fan-shaped gate plates are opened through the dead weight of the overflow materials, the overflow materials overflow into the sleeve type double discharging pipes from gaps between the fan-shaped gate plates to be recycled, and the problem that in the prior art, when activated carbon raw materials are conveyed, the conveying efficiency is high is solved. And inaccurate metering caused by blockage further affects the proportioning and further affects the quality of an activated carbon product.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of activated carbon raw material weighing, especially relates to a prevent spilling material bin weighing device for activated carbon production. BACKGROUND

[0002] The activated carbon chemical activation method can accurately control the pore structure. The method promotes carbon structure rearrangement and etching in the pyrolysis process by means of a series of complex chemical reactions between specific chemical activators and carbon precursors, thereby realizing effective adjustment of pore size, shape and distribution. By accurately controlling the types, dosage, activation temperature and time of activators and other key parameters, activated carbon materials with specific pore characteristics can be constructed as needed to meet the application requirements of different fields.

[0003] In actual industrial production, although the chemical activation method can accurately control the pore characteristics, the following interference factors will significantly affect the performance of the final product:

[0004] Interference factors in the conveying and weighing link:

[0005] Caking phenomenon: hard lumps are formed due to humidity, electrostatic adsorption or fine powder agglomeration during pneumatic conveying or screw feeding, and the raw materials that are not fully broken;

[0006] Weighing error: caking and conveying path blockage (such as pipe accumulation) cause high-precision weight sensors to fail to capture real-time flow, resulting in dynamic proportioning deviation;

[0007] Chain reaction: inaccurate proportioning directly causes activator concentration fluctuation, leading to decreased porosity (BET specific surface area) and deteriorated adsorption performance. INVENTION CONTENTS

[0008] The utility model aims at solving the problem that in the prior art, the metering is inaccurate due to blockage during conveying of activated carbon raw materials, thereby affecting the quality of the activated carbon product.

[0009] To achieve the above-mentioned purpose, the application provides a prevent spilling material bin weighing device for activated carbon production, comprising:

[0010] Conveying belt: used for conveying activated carbon raw materials.

[0011] Interlayer type flared hopper: located below the discharge end of the conveying belt, used for receiving raw materials sent by the conveying belt.

[0012] Double-discharge pipe of sleeve type: connected to the bottom of the interlayer type flared hopper, realizing discharge of the materials.

[0013] High-precision weighing sensor: arranged in the double-discharge pipe of sleeve type, used for accurately measuring the weight of the materials.

[0014] Fan-shaped gate: provided on the top of the inner interlayer of the sandwiched flared hopper, and capable of controlling the flow of materials by opening and closing.

[0015] Symmetrical four-bar linkage mechanism: provided between the adjacent fan-shaped gates, and used for realizing the linkage opening and closing of the gates.

[0016] The active carbon production anti-overflow bin weighing device of the application collects the overflow material after caking and blocking by setting a sandwiched flared hopper, so that the overflow material opens the fan-shaped gate by self-weight, and flows from the gap between the fan-shaped gates to the double outlet pipe of the sleeve pipe type to be recycled, thereby solving the problem of inaccurate measurement caused by blocking during the conveying of active carbon raw materials in the prior art, and further affecting the quality of the active carbon product.

[0017] The fan-shaped gate is internally provided with a hollow slot penetrating through the two side end faces, and the symmetrical four-bar linkage mechanism is embedded in the hollow slot to ensure the stability and compactness of the mechanism movement.

[0018] The hollow slot is internally provided with a spring, and the two ends of the spring respectively pull the two side end portions of the symmetrical four-bar linkage mechanism, so as to provide certain elastic buffering and auxiliary reset.

[0019] The double outlet pipe of the sleeve pipe type comprises an inner layer outlet pipe and an outer layer outlet pipe, and the outer layer outlet pipe covers the inner layer outlet pipe; the inner layer outlet pipe is directly communicated with the internal material cavity of the sandwiched flared hopper, and the outer layer outlet pipe is communicated with the interlayer of the sandwiched flared hopper.

[0020] The inner layer outlet pipe is internally provided with a material blocking plate for blocking the flow of materials; the high-precision weighing sensor is installed on the conveying pipeline communicated with the internal material cavity and located above the material blocking plate, so as to accurately measure the weight of the passing materials.

[0021] The material blocking plate is connected with a control unit, and the control unit controls the opening and closing of the material blocking plate according to the weight signal measured by the high-precision weighing sensor, so as to realize the accurate control of the material conveying amount.

[0022] The outer layer outlet pipe is installed with a suction fan for assisting the material to be discharged from the interlayer and preventing the materials from being accumulated in the interlayer.

[0023] The upper side of the discharge end of the conveying belt is provided with a flow guide baffle, the flow guide baffle comprises two groups of inclined flow guide surfaces arranged symmetrically, the flow guide surfaces form an angle of 25°-40° with the running direction of the conveying belt, and the flow guide baffle is used for gathering the raw materials laid on the conveying belt based on the symmetric center line in the width direction of the conveying belt, so that the raw material accumulation width is reduced to 70%±5% of the effective width of the belt, and the raw materials are prevented from scattering to the outer area of the inner layer material cavity of the interlayer flared hopper due to inertia at the conveying end.

[0024] The application has the following beneficial effects:

[0025] 1. The active carbon production anti-overflow bin weighing device, by setting the interlayer flared hopper, the overflow material after caking and blocking is collected, the overflow material is supported open by the self-weight, flows out from the gap between the sector-shaped gate plates to the double discharge pipe of the sleeve type for recycling, through the precise weighing function, the weight of the material in the bin is monitored in real time, when reaching the set upper limit value, the system can timely send an alarm and take corresponding measures, solves the problem that in the prior art, the metering is inaccurate due to the blocking during the conveying of the active carbon raw material, and then the quality of the active carbon product is affected by the ratio.

[0026] 2. The active carbon production anti-overflow bin weighing device, by setting the air suction fan, the material falling into the interlayer is recycled, and damage to the bin and related equipment caused by excessive accumulation of the material is avoided. The excessive material can generate excessive pressure on the bin structure, causing deformation or even rupture of the bin, and can also affect the normal operation of the conveying, stirring and other equipment connected with the bin. The weighing device can prevent such a situation from occurring, prolong the service life of the equipment, and reduce the equipment maintenance and replacement costs.

[0027] 3. The sector-shaped gate plate is controlled to open and close by the symmetrical four-bar linkage mechanism, in the initial stage, the symmetrical four-bar linkage mechanism is embedded in the sector-shaped gate plate and pulled by the spring, and the sector-shaped gate plate is provided with elastic reset force and vibration buffering, especially in the high-frequency opening and closing scene under the continuous production condition of the active carbon, mechanical wear can be reduced, and the service life can be prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0029] Figure 1 It is a structural schematic view of the active carbon production anti-overflow bin weighing device in the embodiments of the present application.

[0030] Figure 2 is a partial sectional view of a fan-shaped shutter in the embodiment of the present application;

[0031] Figure 3 is a sectional view of a spill-proof material bin weighing device for activated carbon production in the embodiment of the present application;

[0032] Figure 4 is a partial sectional view of a double-outlet pipe sleeve in the embodiment of the present application.

[0033] Explanation of reference signs:

[0034] 101, conveying belt; 102, sandwiched flared hopper; 103, double-outlet pipe sleeve; 104, high-precision weighing sensor; 105, air suction fan; 106, flow guide baffle; 1061, flow guide surface;

[0035] 201, fan-shaped shutter; 202, symmetrical four-bar linkage mechanism; 203, hollow groove; 204, spring;

[0036] 301, inner layer outlet pipe; 302, outer layer outlet pipe; 303, material blocking plate;

[0037] 501, control unit. DETAILED DESCRIPTION

[0038] The following will be described in combination with the accompanying drawings. Figures 1-4 The embodiments of the technical solutions of the present application will be described in detail. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0039] Embodiment 1

[0040] As Figures 1-4 A spill-proof material bin weighing device for activated carbon production is illustrated in the present application. In order to achieve accurate measurement and spill-proof material recovery, the spill-proof material bin weighing device for activated carbon production is provided with a combination structure of a sandwiched flared hopper 102 and a double-outlet pipe sleeve 103, which realizes accurate recovery and measurement of overflowed materials after caking and blocking.

[0041] Specifically, the raw materials for preparing activated carbon first fall into the sandwiched flared hopper 102, and are conveyed along the inner layer outlet pipe 301, and are weighed quantitatively under the cooperation of the material blocking plate 303 and the high-precision weighing sensor 104. After reaching the preset weight, the control unit 501 controls the opening and closing of the material blocking plate 303, so that the raw materials are conveyed to the next stirring process.

[0042] When there are clumps or large particles in the activated carbon raw materials on the conveying belt 101, the clumped raw materials will cause blockage after falling into the inner layer discharge pipe 301, at this time the high-precision weighing sensor cannot always collect the preset weight data, and the control unit controls the material blocking plate to be always closed, so that the raw materials cannot flow out along the inner layer discharge pipe 301. With the increase of the weight of the material in the interlayer, the material will be accumulated in the flared hopper 102 in the interlayer, and finally the material will open the fan-shaped gate 201 arranged at the top of the interlayer by its own weight, and overflow from the gap between adjacent fan-shaped gates to the outer layer discharge pipe 302 of the double-layer discharge pipe 103. In this process, the high-precision weighing sensor 104 monitors the weight change of the material in the double-layer discharge pipe 103 in real time, and when the set upper limit value is reached, the system can timely issue an alarm and take corresponding measures, such as adjusting the conveying speed of the conveying belt 101 or suspending the conveying, so as to prevent the overflow from further accumulation and ensure the accuracy of weighing. This structure effectively solves the problem of inaccurate measurement caused by blockage in the prior art, improves the accuracy of activated carbon production ratio, and thus ensures the product quality.

[0043] In order to realize accurate control of the material conveying amount, the device is provided with a material blocking plate 303 inside the inner layer discharge pipe 301, which is connected with the control unit 501. Specifically, the high-precision weighing sensor 104 is installed on the conveying pipeline communicating with the internal material cavity and located above the material blocking plate 303. When the material passes through the inner layer discharge pipe 301, the high-precision weighing sensor 104 monitors the weight change of the material in real time and transmits the weight signal to the control unit 501. The control unit 501 judges whether the material blocking plate 303 needs to be opened or closed according to the received weight signal and in combination with the preset material conveying amount parameter. When the weight of the material reaches the set value, the control unit 501 issues an instruction to control the material blocking plate 303 to be closed to stop the material from flowing; when the weight of the material is lower than the set value, the control unit 501 issues an instruction again to control the material blocking plate 303 to be opened to allow the material to continue to flow. This design realizes accurate control of the material conveying amount and improves the automation level and production efficiency of activated carbon production.

[0044] The control unit 501 can be specifically provided as follows: the bottom of the material blocking plate 303 is welded with a rack mechanism 3031, a micro drive motor 3032 is arranged on the outer wall of the outer layer discharge pipe 302, and the output shaft end of the micro drive motor 3032 is connected with a gear mechanism 3033 engaged with the rack mechanism 3031. When the high-precision weighing sensor 104 detects a weight meeting the preset value, an electric signal is sent to the control unit 501, the control unit 501 drives the micro drive motor 3032, the rotation of the output shaft drives the rotation of the gear mechanism 3033, and then drives the linear motion of the rack mechanism 3031, and then drives the opening of the material blocking plate 303 to complete the unloading.

[0045] In order to prevent the raw materials from scattering to the outer area of the inner layer material cavity of the sandwiched flared hopper 102 at the conveying end due to inertia, the device is provided with a flow guide baffle 106 above the discharge end of the conveying belt 101. Specifically, the flow guide baffle 106 includes two sets of inclined flow guide surfaces 1061 arranged symmetrically, and the flow guide surfaces 1061 form an angle of 25°-40° with the running direction of the conveying belt 101. When the raw materials are conveyed on the conveying belt 101, the flow guide surfaces 1061 of the flow guide baffle 106 gather the raw materials laid on the conveying belt 101 based on the symmetric center line in the width direction of the conveying belt, so that the raw material accumulation width is reduced to 70%±5% of the effective width of the belt. This design effectively prevents the problem of raw materials scattering to the outer area of the sandwiched flared hopper 102 at the conveying end due to inertia, improves the conveying efficiency of the raw materials, and also reduces the waste and cleaning cost caused by the scattering of the raw materials.

[0046] Embodiment 2

[0047] In order to prevent the raw materials from scattering to the outer area of the inner layer material cavity of the sandwiched flared hopper 102 at the conveying end due to inertia, the device is provided with a flow guide baffle 106 above the discharge end of the conveying belt 101. Specifically, the flow guide baffle 106 includes two sets of inclined flow guide surfaces 1061 arranged symmetrically, and the flow guide surfaces 1061 form an angle of 25°-40° with the running direction of the conveying belt 101. When the raw materials are conveyed on the conveying belt 101, the flow guide surfaces 1061 of the flow guide baffle 106 gather the raw materials laid on the conveying belt 101 based on the symmetric center line in the width direction of the conveying belt, so that the raw material accumulation width is reduced to 70%±5% of the effective width of the belt. This design effectively prevents the problem of raw materials scattering to the outer area of the sandwiched flared hopper 102 at the conveying end due to inertia, improves the conveying efficiency of the raw materials, and also reduces the waste and cleaning cost caused by the scattering of the raw materials.

[0048] Embodiment 3

[0049] As Figures 1-4The application discloses an anti-overflow material bin weighing device for activated carbon production, in order to reduce mechanical wear and prolong service life, the sector gate 201 in the device is controlled to open and close by the symmetrical four-bar linkage mechanism 202, which plays an important role in reducing mechanical wear and prolonging service life. Specifically, the symmetrical four-bar linkage mechanism 202 is embedded in the hollow groove 203 inside the sector gate 201, and is connected with the sector gate 201 through the spring 204. In the initial stage, the spring 204 exerts a pulling force on the symmetrical four-bar linkage mechanism 202, so that the sector gate 201 remains closed. When the weight of the material in the interlayer increases, the material overcomes the pulling force of the spring 204 by its own weight, and opens the sector gate 201, so as to realize the discharge of overflow. In the discharge process, the linkage action of the symmetrical four-bar linkage mechanism 202 ensures the smooth opening and closing of the sector gate 201, and reduces the mechanical wear caused by single-point stress. At the same time, the elastic restoring force and vibration buffering effect of the spring 204 further prolong the service life of the sector gate 201, and are especially suitable for the high-frequency opening and closing scene under the continuous production condition of activated carbon.

[0050] In the description of the embodiments of the application, the orientation or positional relationship indicated by the technical terms "upper", "lower", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0051] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms "set", "provided with", "connected", "mounted" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be directly connected, or can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0052] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A weighing device for an anti-overflow silo used in activated carbon production, characterized in that, include: Conveyor belt (101); Sandwich type flared hopper (102): located below the discharge end of the conveyor belt (101); Sleeve-type double discharge pipe (103): connected to the bottom of the sandwich-type flared hopper (102); High-precision weighing sensor (104): installed inside the sleeve-type double discharge pipe (103); Fan-shaped gate (201): installed at the top of the interlayer inside the sandwich flared hopper (102); Symmetrical four-bar linkage mechanism (202): disposed between adjacent sector gates (201).

2. The anti-overflow silo weighing device for activated carbon production according to claim 1, characterized in that, The fan-shaped gate (201) has a hollow groove (203) that runs through both ends, and the symmetrical four-bar linkage mechanism (202) is embedded in the hollow groove (203).

3. The anti-overflow silo weighing device for activated carbon production according to claim 2, characterized in that, A spring (204) is provided inside the hollow groove (203), and the two ends of the spring (204) respectively pull the two ends of the symmetrical four-bar linkage mechanism (202).

4. The anti-overflow silo weighing device for activated carbon production according to claim 1, characterized in that, The sleeve-type double discharge pipe (103) includes an inner discharge pipe (301) and an outer discharge pipe (302), wherein the outer discharge pipe (302) covers the inner discharge pipe (301); the inner discharge pipe (301) is directly connected to the internal material cavity of the sandwich-type flared hopper (102), and the outer discharge pipe (302) is connected to the sandwich of the sandwich-type flared hopper (102).

5. The anti-overflow silo weighing device for activated carbon production according to claim 4, characterized in that, The inner discharge pipe (301) is provided with a material blocking plate (303); the high-precision weighing sensor (104) is installed on the conveying pipe that connects to the inner material cavity and is located above the material blocking plate (303).

6. The anti-overflow silo weighing device for activated carbon production according to claim 5, characterized in that, The material blocking plate (303) is connected to the control unit (501).

7. The anti-overflow silo weighing device for activated carbon production according to claim 4, characterized in that, A suction fan (105) is installed on the outer discharge pipe (302).

8. The anti-overflow silo weighing device for activated carbon production according to claim 1, characterized in that, A guide baffle (106) is installed above the discharge end of the conveyor belt (101). The guide baffle (106) includes two sets of symmetrically arranged inclined guide surfaces (1061). The guide surfaces (1061) form an angle of 25°-40° with the running direction of the conveyor belt (101).

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