Automatic sodium borohydride feeding and conveying equipment

Abstract

The utility model belongs to the technical field of chemical engineering, and particularly relates to automatic sodium borohydride feeding and conveying equipment which comprises an automatic bale breaker, a bag breaking machine is arranged at a feeding port of the automatic bale breaker, a feeding port of the bag breaking machine is arranged at a discharging port of a belt conveyor, a mechanical arm is located on one side of a feeding port of the belt conveyor, and a dust remover is connected to the middle of the upper surface of the automatic bale breaker. A spiral screening barrel is installed in the device, a waste bag outlet is formed in a discharging port, a discharging hopper is arranged in the middle of the lower surface of the device, the lower portion of the discharging hopper is connected with a scattering barrel through a discharging pipe, the left portion of the lower side of the scattering barrel is connected with a nitrogen supplementing pipe, and the right side of the scattering barrel is connected with a negative pressure pneumatic conveyor through a conveying pipe. The upper part of the right side of the scattering barrel is connected with a fan through an air pipe, and an outlet of the fan is communicated with the right part of the upper side of the scattering barrel through a nitrogen return pipe. According to the equipment, full-automatic unpacking and conveying are achieved, materials are scattered to avoid caking, dust leakage is avoided, nitrogen conveying forms a closed loop, and energy consumption is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical industry, and in particular relates to automatic feeding and conveying equipment for sodium borohydride. Background Art

[0002] Sodium borohydride is an inorganic compound with stable performance and selectivity during reduction. It is one of the commonly used reducing agents. As a reducing agent, it is widely used in organic synthesis. It can be used as a reducing agent for aldehydes, ketones and acyl chlorides, an intermediate for the manufacture of potassium borohydride, a raw material for the manufacture of diborane and other high-energy fuels, a foaming agent in the plastics industry, a treatment agent for mercury-containing wastewater in the papermaking industry, a papermaking bleaching agent, and a hydrogenating agent for the manufacture of dihydrostreptomycin in the pharmaceutical industry.

[0003] Since sodium borohydride is easy to deliquesce, it is easy to absorb moisture in the wet air to deliquesce or agglomerate, so it is required to avoid contact with air as much as possible during the feeding process, and the feeding speed is also faster. However, the existing sodium borohydride feeding equipment mainly utilizes manual handling of bagged sodium borohydride, which has a low degree of mechanization, high labor intensity of workers, slow feeding speed, and dust will appear during the unpacking of the packaging bag, which affects the working environment. In the process of feeding, the material sodium borohydride will inevitably contact with air, and sodium borohydride will have a certain degree of deliquesce or agglomeration, which cannot be directly used, affecting the feeding efficiency, and is not suitable for industrial production. Therefore, how to overcome the above-mentioned technical problems and defects becomes a key problem to be solved. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide an automatic feeding and conveying device for sodium borohydride.

[0005] The purpose of the utility model is achieved in this way:

[0006] A sodium borohydride automatic feeding and conveying device comprises a manipulator and an automatic unpacking machine, wherein a bag breaker is arranged at a feeding port of the automatic unpacking machine, the feeding port of the bag breaker is arranged at a discharging port of a belt conveyor, the manipulator is located at one side of the feeding port of the belt conveyor, a blade shaft is installed in the bag breaker, a dust collector is connected to the middle of the upper surface of the automatic unpacking machine, a spiral screening cylinder is installed in the middle of the automatic unpacking machine, a waste bag outlet is arranged at the discharging port of the automatic unpacking machine, a lower hopper is arranged in the middle of the lower surface of the automatic unpacking machine, a lower part of the lower hopper is connected to a discharging pipe, a dispersing cylinder is arranged below the discharging pipe, and the dispersing pipe is connected to the dispersing cylinder;

[0007] A dispersing mechanism is installed in the dispersing barrel, a nitrogen replenishing pipe is connected to the left lower part of the dispersing barrel, a feeding pipe is connected to the right side of the dispersing barrel, the right side of the feeding pipe is connected to a negative pressure pneumatic conveyor, the negative pressure pneumatic conveyor includes a separation barrel, the feeding pipe is connected to the middle part of the left side of the separation barrel, a filter element is installed in the upper part of the separation barrel, a discharge pipe is connected to the lower part of the separation barrel, an air duct is connected to the upper right part of the separation barrel, a fan is connected to the other end of the air duct, a nitrogen reflux pipe is connected to the outlet of the fan, the other end of the nitrogen reflux pipe is connected to the right upper part of the dispersing barrel, and a nitrogen reflux valve is installed on the nitrogen reflux pipe.

[0008] Furthermore, the scattering mechanism includes a scattering shaft, the left end of which passes through the left side wall of the scattering barrel and is fixedly connected to the output shaft of the motor, the scattering shaft is rotatably connected to the left side wall of the scattering barrel through a bearing, the motor is installed on the left side of the scattering barrel, and scattering blades are fixedly connected to the scattering shaft. The material entering the scattering barrel is scattered by the scattering mechanism, which not only can avoid the agglomeration of the material, but also can make the scattered material fully contact with nitrogen, thereby improving the feeding speed.

[0009] Furthermore, the scattering blades are staggeredly installed on the scattering shaft to fully scatter the materials at different positions in the scattering barrel to avoid scattering blind areas.

[0010] Furthermore, the number of the blade axes is two, and the two blade axes are symmetrically arranged.

[0011] Furthermore, blades are evenly fixedly connected to the outer side of the blade shaft, and the packaging bag is cut by the blades to achieve unpacking.

[0012] Furthermore, one end of the blade shaft is externally connected to a driving motor.

[0013] Furthermore, spiral blades are installed on the inner wall of the spiral screening cylinder, and the unpacked waste bags are guided by the spiral blades.

[0014] Furthermore, the blower is a Roots blower or a vortex blower.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model uses a manipulator to deliver bagged sodium borohydride to a belt conveyor, and then delivers the bagged sodium borohydride to a bag breaker through the belt conveyor, and the bag breaker automatically unpacks the bag. The automatic unpacker separates the packaging bag and the material. A Roots blower or a vortex blower generates negative pressure in the negative pressure pneumatic conveyor, the feed pipe and the breaking cylinder. Dry nitrogen is filled into the breaking cylinder through a nitrogen replenishing pipe for protection to prevent the sodium borohydride from contacting with the air and absorbing moisture. A filter element is installed on the upper part of the separation cylinder of the negative pressure pneumatic conveyor to filter the gas. The sodium borohydride material is discharged through a discharge pipe to realize automatic feeding of the sodium borohydride.

[0017] 2. The feeding pipe of the utility model is connected with the breaking cylinder, and a breaking mechanism is installed in the breaking cylinder. The material entering the breaking cylinder is broken up by the breaking mechanism, which can not only avoid the agglomeration of the material, but also make the broken material fully contact with nitrogen, so as to improve the feeding speed.

[0018] 3. The utility model fills dry nitrogen protection into the dispersion cylinder through a nitrogen replenishing pipe, and a filter element installed on the upper part of the separation cylinder filters the gas. The filtered gas enters the nitrogen reflux pipe through the outlet of the Roots blower or the vortex blower, and flows back to the dispersion cylinder through the nitrogen reflux pipe, so that the nitrogen delivery forms a closed loop, which can reduce the amount of nitrogen replenishment and also makes the delivery system a pneumatic delivery system combining positive and negative pressures, which can reduce energy consumption.

[0019] 4. The utility model conveys bagged sodium borohydride by a manipulator and a belt conveyor, and separates the unpacked packaging bags and materials by an automatic unpacking machine, thereby realizing fully automatic unpacking and conveying, reducing manual handling, lowering the labor intensity of workers, and having strong practicality.

[0020] 5. A dust collector is connected to the middle of the upper surface of the automatic unpacking machine of the utility model. The dust collector can absorb the dust generated in the automatic unpacking machine, without dust leakage, avoiding affecting the working environment, and is suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of the structure of the automatic feeding and conveying equipment for sodium borohydride.

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] In the figure: 1-manipulator, 2-belt conveyor, 3-bag breaker, 4-dust collector, 5-blade shaft, 6-spiral screening cylinder, 7-automatic bag unpacker, 8-discharging hopper, 9-waste bag outlet, 10-feeding pipe, 11-negative pressure pneumatic conveyor, 12-filter element, 13-separation cylinder, 14-discharging pipe, 15-air duct, 16-blower, 17-nitrogen reflux pipe, 18-dispersing cylinder, 19-dispersing blades, 20-dispersing shaft, 21-nitrogen replenishing pipe, 22-motor, 23-discharging pipe, 24-nitrogen reflux valve. DETAILED DESCRIPTION

[0024] The automatic sodium borohydride feeding and conveying equipment of the present invention will be described in more detail below with reference to the accompanying drawings and through specific implementation methods.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] See also Figure 1 , a sodium borohydride automatic feeding and conveying equipment, comprising a manipulator 1 and an automatic unpacking machine 7, the feeding port of the automatic unpacking machine 7 is provided with a bag breaker 3, the feeding port of the bag breaker 3 is arranged at the discharge port of the belt conveyor 2, the manipulator 1 is located on one side of the feeding port of the belt conveyor 2, a blade shaft 5 is installed in the bag breaker 3, a dust collector 4 is connected to the middle of the upper surface of the automatic unpacking machine 7, a spiral screening drum 6 is installed in the middle of the automatic unpacking machine 7, a waste bag outlet 9 is provided at the discharge port of the automatic unpacking machine 7, a lower hopper 8 is provided in the middle of the lower surface of the automatic unpacking machine 7, a lower part of the lower hopper 8 is connected to a lower feeding pipe 23, a scattering cylinder 18 is provided below the lower feeding pipe 23, and the lower feeding pipe 23 is connected to the scattering cylinder 18;

[0027] See also Figure 1 and Figure 2A dispersing mechanism is installed in the dispersing barrel 18, a nitrogen replenishing pipe 21 is connected to the left lower part of the dispersing barrel 18, a feeding pipe 10 is connected to the right side of the dispersing barrel 18, and the right side of the feeding pipe 10 is connected to a negative pressure pneumatic conveyor 11, the negative pressure pneumatic conveyor 11 includes a separation barrel 13, the feeding pipe 10 is connected to the middle part of the left side of the separation barrel 13, a filter element 12 is installed in the upper part of the separation barrel 13, a discharge pipe 14 is connected to the lower part of the separation barrel 13, an air duct 15 is connected to the upper right part of the separation barrel 13, a fan 16 is connected to the other end of the air duct 15, a nitrogen reflux pipe 17 is connected to the outlet of the fan 16, the other end of the nitrogen reflux pipe 17 is connected to the right upper part of the dispersing barrel 18, and a nitrogen reflux valve 24 is installed on the nitrogen reflux pipe 17.

[0028] See also Figure 2 The scattering mechanism includes a scattering shaft 20, the left end of which passes through the left side wall of the scattering cylinder 18 and is fixedly connected to the output shaft of the motor 22. The scattering shaft 20 is rotatably connected to the left side wall of the scattering cylinder 18 through a bearing. The motor 22 is installed on the left side of the scattering cylinder 18. A scattering blade 19 is fixedly connected to the scattering shaft 20. The material entering the scattering cylinder 18 is scattered by the scattering blade 19, which can not only avoid material agglomeration, but also make the scattered material fully contact with nitrogen, which can improve the feeding speed.

[0029] See also Figure 2 The scattering blades 19 are staggeredly installed on the scattering shaft 20 to fully scatter the materials at different positions in the scattering cylinder 18 to avoid scattering blind areas.

[0030] See also Figure 1 The number of the blade shafts 5 is two, and the two blade shafts 5 are symmetrically arranged.

[0031] Furthermore, blades are evenly fixedly connected to the outer side of the blade shaft 5, and the packaging bag is cut by the blades to achieve unpacking.

[0032] Furthermore, one end of the blade shaft 5 is externally connected to a driving motor.

[0033] Furthermore, spiral blades are installed on the inner wall of the spiral screening cylinder 6, and the unpacked waste bags are guided by the spiral blades.

[0034] Furthermore, the blower 16 is a Roots blower 16 or a vortex blower 16 .

[0035] The working principle of the utility model is as follows: first, the bagged sodium borohydride is delivered to the belt conveyor 2 by the manipulator 1, and the bagged sodium borohydride is delivered to the bag breaking machine 3 by the belt conveyor 2. The blade on the outer side of the blade shaft 5 in the bag breaking machine 3 will cut the packaging bag, and the material after the bag is broken will be automatically screened in the spiral screening cylinder 6 in the automatic unpacking machine 7, and the screened material will enter the lower hopper 8, and the unpacked waste bag will be guided to the waste bag outlet 9 by the spiral blade, and the dust collector 4 can absorb the dust generated in the automatic unpacking machine 7 without dust leakage; then, the material will enter the lower feeding pipe 23 through the lower feeding pipe 23, and enter the scattering cylinder 18 through the lower feeding pipe 23, and the motor 22 will drive the scattering shaft 20 to rotate, and the scattering blades 19 on the scattering shaft 20 will scatter the material The materials are broken up to avoid agglomeration. The Roots blower or vortex blower generates negative pressure in the negative pressure pneumatic conveyor 11, the feed pipe 10 and the breaking cylinder 18. Dry nitrogen is filled into the breaking cylinder 18 through the nitrogen replenishing pipe 21 for protection to prevent the sodium borohydride from contacting with the air and absorbing moisture. The filter element 12 installed on the upper part of the separation cylinder 13 filters the gas. The filtered gas enters the nitrogen reflux pipe 17 through the outlet of the Roots blower or vortex blower, and flows back to the breaking cylinder 18 through the nitrogen reflux pipe 17, so that the nitrogen delivery forms a closed loop, which can reduce the amount of nitrogen replenishment and make the conveying system a pneumatic conveying system combining positive and negative pressures, which can reduce energy consumption. The sodium borohydride material is discharged through the discharge pipe 14 to realize automatic feeding of the sodium borohydride.

[0036] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprises" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0037] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. A sodium borohydride automatic feeding and conveying device, comprising a manipulator and an automatic unpacking machine, Features: The feeding port of the automatic unpacking machine is provided with a bag breaker, and the feeding port of the bag breaker is arranged at the discharging port of the belt conveyor. The manipulator is located at one side of the feeding port of the belt conveyor. A blade shaft is installed in the bag breaker. A dust collector is connected to the middle of the upper surface of the automatic unpacking machine. A spiral screening cylinder is installed in the middle of the automatic unpacking machine. A waste bag outlet is provided at the discharging port of the automatic unpacking machine. A lower hopper is provided in the middle of the lower surface of the automatic unpacking machine. A lower part of the lower hopper is connected to a discharging pipe. A scattering cylinder is provided below the discharging pipe, and the discharging pipe is connected to the scattering cylinder. A dispersing mechanism is installed in the dispersing cylinder, a nitrogen supplement pipe is connected to the left lower part of the dispersing cylinder, a feeding pipe is connected to the right side of the dispersing cylinder, and the right side of the feeding pipe is connected to a negative pressure pneumatic conveyor, the negative pressure pneumatic conveyor includes a separation cylinder, the feeding pipe is connected to the middle part of the left side of the separation cylinder, a filter element is installed in the upper part of the separation cylinder, a discharge pipe is connected to the lower part of the separation cylinder, an air duct is connected to the upper right part of the separation cylinder, a fan is connected to the other end of the air duct, a nitrogen reflux pipe is connected to the outlet of the fan, the other end of the nitrogen reflux pipe is connected to the right upper part of the dispersing cylinder, and a nitrogen reflux valve is installed on the nitrogen reflux pipe; The scattering mechanism includes a scattering shaft, the left end of which passes through the left side wall of the scattering cylinder and is fixedly connected to the output shaft of the motor. The scattering shaft is rotatably connected to the left side wall of the scattering cylinder through a bearing. The motor is installed on the left side of the scattering cylinder, and scattering blades are fixedly connected to the scattering shaft.

2. The automatic feeding and conveying equipment for sodium borohydride according to claim 1, Features: The scattering blades are staggeredly installed on the scattering shaft.

3. The automatic feeding and conveying equipment for sodium borohydride according to claim 1, Features: The number of the blade shafts is two, and the two blade shafts are symmetrically arranged.

4. The automatic feeding and conveying equipment for sodium borohydride according to claim 3, Features: The outer side of the blade shaft is evenly fixed with blades.

5. The automatic feeding and conveying equipment for sodium borohydride according to claim 3 or 4, Features: One end of the blade shaft is externally connected with a driving motor.

6. The automatic feeding and conveying equipment for sodium borohydride according to claim 1, Features: The inner wall of the spiral screening cylinder is provided with spiral blades.

7. The automatic feeding and conveying equipment for sodium borohydride according to claim 1, Features: The blower is a Roots blower or a vortex blower.

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