Storage device for improving stability of carbon black

Abstract

The utility model discloses a storage device for improving the stability of carbon black, which comprises a stock bin, a stirring mechanism and a ventilation mechanism are arranged in the stock bin, the stirring mechanism comprises a stirring shaft arranged in the stock bin and stirring blades arranged on the stirring shaft, the stirring blades are arranged in a multi-layer and multi-angle mode, the stock bin is communicated with a nitrogen storage tank, and the nitrogen storage tank is communicated with the ventilation mechanism. A first electric valve is arranged on a connecting pipeline of the stock bin and the nitrogen storage tank, an oxygen concentration sensor and a humidity sensor are arranged in the stock bin, and the oxygen concentration sensor is interlocked with the first electric valve; the ventilation mechanism comprises an annular ventilation pipeline arranged on the lower portion of the stock bin, a plurality of ventilation holes facing the stirring shaft are formed in the annular ventilation pipeline, and the annular ventilation pipeline communicates with an air blower. The humidity sensor is interlocked with the blower; an air outlet is formed in the top of the stock bin and sequentially communicated with the cyclone separator, the bag-type dust collector and the induced draft fan. The device can effectively prevent the carbon black from absorbing moisture, oxidizing and caking, so that the storage stability of the carbon black is improved, and the dust raising phenomenon can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the carbon black production technical field, concretely relates to a kind of storage device for improving the stability of carbon black. BACKGROUND

[0002] Carbon black particle size is small, and specific surface area is large, in production, transportation and storage process, it is easy to fly, this not only brings environmental pollution problem, also possibly influence the health of operator, and carbon black is also easy to occur self-aggregation in storage process, lead to carbon black particles in storage tank agglomeration and deposition, this not only influence the fluidity of carbon black, possibly also cause the blockage of storage tank and cleaning difficulty. SUMMARY

[0003] The technical problem to be solved by the utility model is: in view of the deficiency existing in prior art, provide a kind of storage device for improving the stability of carbon black, the device can effectively prevent carbon black moisture absorption, oxidation, caking, to improve the storage stability of carbon black, and also can effectively avoid the occurrence of dust phenomenon.

[0004] To solve the above technical problem, the technical scheme of the utility model is:

[0005] A kind of storage device for improving the stability of carbon black, including bunker, stirring mechanism is equipped in the bunker, the stirring mechanism includes the stirring shaft being arranged in bunker, stirring motor being arranged at the top of bunker and the stirring blade being arranged on stirring shaft, the stirring blade is multilayer and multi-angle setting, upper stirring blade is paddle stirring blade, lower stirring blade is inclinedly arranged downward;The bunker is also connected with nitrogen storage tank, first electric valve is equipped on the connecting pipeline of bunker and nitrogen storage tank, oxygen concentration sensor and humidity sensor are equipped in the bunker, the oxygen concentration sensor is connected with first electric valve in chain;

[0006] Ventilation mechanism is also equipped in the bunker, the ventilation mechanism includes annular ventilation pipeline being arranged in the lower part of bunker, the annular ventilation pipeline is concentric with stirring shaft, a plurality of ventilation holes towards stirring shaft are equipped on the annular ventilation pipeline, the annular ventilation pipeline is connected with air blower;Humidity sensor is connected with air blower in chain;

[0007] The top of the bunker is equipped with air outlet, the air outlet is sequentially connected with cyclone separator, bag-type dust collector and induced draft fan.

[0008] Preferably, drying tank is equipped on the connecting pipeline of annular ventilation pipeline and air blower.

[0009] Preferably, the bunker is equipped with baffle at the air outlet.

[0010] Preferably, the solid outlet of the cyclone separator is connected to a carbon black recovery tank.

[0011] Preferably, the surface of the stirring shaft is provided with a spiral guide groove.

[0012] Preferably, a second electric valve is provided on the connecting pipe between the silo and the cyclone separator, and a dust concentration sensor is provided inside the silo, the dust concentration sensor being interlocked with the second electric valve.

[0013] Preferably, both the humidity sensor and the oxygen concentration sensor are interlocked with the second electric valve.

[0014] Preferably, the hopper is provided with a buffer plate below the hopper inlet, the buffer plate is inclined, and the buffer plate is provided with multiple feed holes.

[0015] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0016] This invention provides a storage device for improving the stability of carbon black. The device includes a stirring mechanism inside the silo. The stirring blades in the stirring mechanism are arranged in multiple layers and at multiple angles. The upper layer of paddle-type stirring blades ensures that the carbon black is fully stirred and dispersed in the upper part of the silo, preventing carbon black particles from agglomerating or forming large lumps. The lower layer of downward-sloping stirring blades helps to turn the carbon black from the bottom of the silo upwards, ensuring that the carbon black in the entire silo is uniformly stirred, thereby improving its dispersibility and stability.

[0017] This device is equipped with an oxygen concentration sensor and a humidity sensor inside the hopper. The oxygen concentration sensor monitors the oxygen concentration in the hopper in real time. When the oxygen concentration exceeds the set value, the first electric valve will automatically open to inject nitrogen into the hopper, thereby reducing the oxygen concentration. The humidity sensor monitors the humidity in the hopper in real time. When the humidity exceeds the set value, the blower will automatically start to ventilate the hopper through the annular ventilation duct to reduce the humidity.

[0018] The annular ventilation duct inside the hopper of this device is designed to be concentric with the mixing shaft, which ensures that the ventilation airflow is evenly distributed throughout the hopper, allowing the air to mix better with the carbon black, thereby ensuring air circulation in the hopper, reducing humidity, and preventing the carbon black from getting damp.

[0019] The top of the hopper in this device is equipped with an air outlet to ensure smooth airflow. The exhausted air is then treated by a cyclone separator and a bag filter, effectively removing dust generated during the mixing and ventilation processes of the carbon black, preventing environmental pollution and ensuring carbon black quality. In summary, this device, through the uniform mixing of the mixing mechanism, nitrogen protection, and dehumidification of the ventilation mechanism, significantly improves the stability of carbon black and prevents its agglomeration, oxidation, or moisture absorption.

[0020] The baffle plate can effectively block the carbon black particles from leaking out of the air outlet along with the ventilation airflow, ensure the cleanliness of the storage environment and the quality of the carbon black, and also can reduce the loss of carbon black and improve the resource utilization rate. In addition, the baffle plate can block most of the carbon black particles from being discharged, thereby reducing the dust load of the subsequent cyclone separator and bag dust collector, and prolonging the service life thereof.

[0021] The spiral flow guide groove on the surface of the stirring shaft can guide the air to flow along a specific path when the stirring shaft rotates, enhance the ventilation effect, and help the air circulation in the bin, reduce the humidity, and prevent the carbon black from being damp.

[0022] The second electric valve is arranged on the connecting pipeline of the bin and the cyclone separator, and a dust concentration sensor is arranged in the bin, and the dust concentration sensor is interlocked with the second electric valve. The dust concentration sensor can monitor the dust concentration in the bin in real time, so that the operator can know the dispersion state of the carbon black particles and the possible dust pollution in time. By interlocking the dust concentration sensor with the second electric valve, automatic control can be realized. When the dust concentration in the bin exceeds the set value, the second electric valve will be automatically opened, so that the gas carrying dust is discharged and treated by the cyclone separator and the bag dust collector, thereby improving the storage stability of the carbon black.

[0023] A buffer plate is arranged below the feed inlet of the bin in the bin, the buffer plate is arranged obliquely, and a plurality of feed holes are arranged on the buffer plate. When the material falls into the bin from the feed inlet, the impact force is large, which is easy to impact and compact the inner wall of the bin and the material below. The oblique buffer plate can effectively slow down the falling speed of the material and reduce the impact force, so as to protect the structure of the bin and the loose property of the material. Moreover, through the plurality of feed holes on the buffer plate, the material can be more uniformly dispersed in the bin, which helps to avoid excessive accumulation of the material in a certain area, and improves the utilization rate and dispersibility of the carbon black material. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic view of the embodiment 1 of the present application;

[0026] Figure 2 is Figure 1 an enlarged structural schematic view of A in the embodiment 1 of the present application;

[0027] Figure 3 is Figure 1 Enlarged structural schematic view at B in FIG. 1;

[0028] In the figure, 1, stock bin; 2, stirring shaft; 3, stirring motor; 4, stirring blade; 5, nitrogen storage tank; 6, first electric valve; 7, oxygen concentration sensor; 8, humidity sensor; 9, annular ventilation pipeline; 10, ventilation hole; 11, air blower; 12, drying tank; 13, air outlet; 14, cyclone separator; 15, bag-type dust collector; 16, induced draft fan; 17, carbon black recovery tank; 18, material blocking plate; 19, flow guide groove; 20, second electric valve; 21, dust concentration sensor; 22, buffer plate; 23, feeding hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application

[0030] Embodiment 1

[0031] With reference to Figures 1-3 As shown in FIG. 1, a storage device for improving stability of carbon black, comprising a stock bin 1, a stirring mechanism is arranged in the stock bin 1, the stirring mechanism comprises a stirring shaft 2 arranged in the stock bin 1, a stirring motor 3 arranged at the top of the stock bin 1 and stirring blades 4 arranged on the stirring shaft 2, the stirring blades 4 are arranged in multiple layers and multiple angles, the upper stirring blades are paddle stirring blades, and the lower stirring blades are arranged downwardly inclined; the upper paddle stirring blades can effectively disturb the carbon black in the upper part of the stock bin 1, enhance the lateral mixing of the material, and avoid the agglomeration of the carbon black at the top, the lower stirring blades are arranged downwardly inclined, can reach the bottom of the stock bin 1, stir up the carbon black that may be accumulated and compacted, make the distribution of the carbon black in the whole stock bin 1 more uniform, help to improve the uniformity of the carbon black in the storage process, ensure the quality stability, and the stirring blades 4 with different shapes and angles can drive the air in the stock bin 1 to flow when rotating, and cooperate with the ventilation mechanism to form good air circulation, further promote ventilation, avoid abnormal humidity and oxygen concentration caused by local air accumulation, and maintain the stability of the carbon black storage environment.

[0032] The bin 1 is also communicated with a nitrogen storage tank 5, a first electric valve 6 is arranged on the connecting pipeline between the bin 1 and the nitrogen storage tank 5, an oxygen concentration sensor 7 and a humidity sensor 8 are arranged in the bin 1, and the oxygen concentration sensor 7 is connected with the first electric valve 6 in a chain mode; when the oxygen concentration sensor 7 detects that the oxygen concentration in the bin 1 exceeds a set threshold value, a signal is transmitted to an external control system (not shown in the figure), and the external control system automatically opens the first electric valve 6 and a second electric valve 20, so that nitrogen is introduced into the bin 1 to replace the air in the bin 1, isolate oxygen and moisture, slow down the oxidation and moisture absorption speed of the carbon black, thereby improving the chemical stability of the carbon black and prolonging the storage period of the carbon black.

[0033] A ventilation mechanism is further arranged in the bin 1, the ventilation mechanism comprises an annular ventilation pipeline 9 arranged at the lower part of the bin 1, the annular ventilation pipeline 9 is concentric with the stirring shaft 2, a plurality of ventilation holes 10 are arranged on the annular ventilation pipeline 9 and face the stirring shaft 2, the annular ventilation pipeline 9 is communicated with a blower 11, and a drying tank 12 is arranged on the connecting pipeline between the annular ventilation pipeline 9 and the blower 11; the humidity sensor 8 is connected with the blower 11 in a chain mode; the air dried by the drying tank 12 is sprayed out through the ventilation holes 10 on the annular ventilation pipeline 9, which can remove the heat generated by the carbon black during the storage process, prevent the temperature from rising and affecting the stability of the carbon black, and reduce the humidity in the bin 1, so that the carbon black is kept in a dry state together with the nitrogen. Moreover, the humidity sensor 8 is connected with the blower 11 in a chain mode, and when the humidity exceeds the standard, the blower 11 is automatically started to strengthen the ventilation and drying, so that the humidity is ensured to be within a proper range. Moreover, the annular ventilation pipeline 9 can make the air flow uniformly act on the carbon black in the bin 1, cooperate with the stirring mechanism, form a reasonable air flow path, promote the carbon black to fully contact with the air, and improve the ventilation and drying effects.

[0034] An air outlet 13 is arranged at the top of the bin 1, the air outlet 13 is sequentially communicated with a cyclone separator 14, a bag-type dust collector 15 and an induced draft fan 16, and a solid outlet of the cyclone separator 14 is communicated with a carbon black recovery tank 17; during operation, the cyclone separator 14 first separates most of the carbon black particles discharged with the air flow and returns them to the carbon black recovery tank 17, thereby reducing the loss of the carbon black, improving the resource utilization rate and reducing the production cost; the bag-type dust collector 15 further filters and collects the remaining fine particles, so that the discharged air meets the environmental emission standard, avoids the pollution of the carbon black dust to the environment, and also guarantees the air quality of the working place and protects the health of the operators.

[0035] Further, in the embodiment, the bin 1 is provided with a baffle plate 18 at the air outlet 13. The baffle plate 18 can block the carbon black particles entrained in the airflow from directly discharging from the bin 1, so that more carbon black particles fall back into the bin 1 under the action of the baffle plate 18, further reducing the loss of carbon black in the ventilation and exhaust process, improving the retention rate of carbon black, and reducing unnecessary material waste.

[0036] Further, in the embodiment, the surface of the stirring shaft 2 is provided with a spiral flow guide groove 19. When the stirring shaft 2 rotates, the air can be guided to flow along the flow guide groove 19, enhancing the ventilation effect.

[0037] Further, in the embodiment, a second electric valve 20 is arranged on the connecting pipeline of the bin 1 and the cyclone separator 14, a dust concentration sensor 21 is arranged in the bin 1, the dust concentration sensor 21 is interlocked with the second electric valve 20, and the oxygen concentration sensor 7 and the air blower 11 are also respectively interlocked with the second electric valve 20. When the dust concentration sensor 21 detects that the dust concentration in the bin 1 is too high, a signal is transmitted to an external control system, and the external control system automatically opens the second electric valve 20. In this way, high-concentration dust can be discharged and treated in time, the dust concentration in the bin 1 is maintained appropriate, the storage environment safety is ensured, and explosion and other dangers caused by too high dust concentration are avoided.

[0038] Further, in the embodiment, a buffer plate 22 is arranged below the feed inlet of the bin 1 in the bin 1, the buffer plate 22 is arranged obliquely, and a plurality of feed holes 23 are arranged on the buffer plate 22. The buffer plate 22 can effectively buffer the impact force of carbon black during feeding, avoid direct impact of the material on the bottom of the bin 1, reduce the wear of the bin 1, prolong the service life of the bin 1, and the plurality of feed holes 23 on the buffer plate 22 can disperse the carbon black during falling, so that the carbon black enters the bin 1 more uniformly and avoids local accumulation, which is helpful for the subsequent stirring mechanism to more efficiently mix the carbon black, further ensuring the uniformity and stability of the carbon black storage.

[0039] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A storage device for improving stability of carbon black, comprising a silo, characterized in that: The silo is internally provided with a stirring mechanism, which comprises a stirring shaft arranged in the silo, a stirring motor arranged at the top of the silo and stirring blades arranged on the stirring shaft, wherein the stirring blades are arranged in multiple layers and at multiple angles, the upper stirring blades are paddle stirring blades, and the lower stirring blades are arranged in a downward inclination; the silo is further communicated with a nitrogen storage tank, a first electric valve is arranged on the connecting pipeline between the silo and the nitrogen storage tank, an oxygen concentration sensor and a humidity sensor are arranged in the silo, and the oxygen concentration sensor is arranged in interlocking with the first electric valve; The silo is further provided with a ventilation mechanism, which comprises an annular ventilation pipeline arranged at the lower part of the silo, wherein the annular ventilation pipeline is concentric with the stirring shaft, a plurality of ventilation holes are arranged on the annular ventilation pipeline and face the stirring shaft, and the annular ventilation pipeline is communicated with a blower; the humidity sensor is arranged in interlocking with the blower. The top of the silo is provided with an air outlet, which is communicated with a cyclone separator, a bag-type dust collector and an induced draft fan in sequence.

2. The storage device for improving stability of carbon black according to claim 1, characterized in that: A drying tank is arranged on the connecting pipeline between the annular ventilation pipeline and the blower.

3. The storage device for improving stability of carbon black according to claim 1, characterized in that: The silo is provided with a baffle plate at the air outlet.

4. The storage device for improving stability of carbon black according to claim 1, characterized in that: The solid outlet of the cyclone separator is communicated with a carbon black recovery tank.

5. The storage device for improving stability of carbon black according to claim 1, characterized in that: The surface of the stirring shaft is provided with helical flow guide grooves.

6. The storage device for improving stability of carbon black according to claim 1, characterized in that: A second electric valve is arranged on the connecting pipeline between the silo and the cyclone separator, a dust concentration sensor is arranged in the silo, and the dust concentration sensor is arranged in interlocking with the second electric valve.

7. The storage device for improving stability of carbon black according to claim 6, characterized in that: The blower and the oxygen concentration sensor are both arranged in interlocking with the second electric valve.

8. The storage device for improving stability of carbon black according to claim 1, characterized by: A buffer plate is arranged in the silo below the feed inlet of the silo, the buffer plate is arranged in an inclination, and a plurality of feed holes are arranged on the buffer plate.

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