CN114797690A - Novel white carbon black modification equipment - Google Patents

Abstract

The application relates to the technical field of white carbon black production equipment, and discloses a new type of white carbon black modification equipment, including a heating component, a powder conveying pump, a silo and multiple fluidized beds, and the heating component is arranged in the multiple fluidized beds In between, the feeding port of the powder conveying pump is connected with the silo through a pipeline; the fluidized bed includes a vertically arranged pipe body and an air inlet pipe arranged in the middle of the pipe body, and the air inlet pipe is used for introducing nitrogen and modifier. The air inlet pipe is provided with a plurality of first air outlets in an array at different heights, the top of the pipe body is provided with a feed pipe connected to the discharge port of the powder conveying pump, and the bottom of the pipe body is connected with a discharge pipe. The top of the pipe body is connected with an air outlet pipe. The end of the air inlet pipe is provided with a second air outlet, and the second air outlet is arranged toward the bottom of the pipe body. It also includes a controller. The feeding pipe is provided with a feeding valve, and the discharging pipe is provided with a discharging valve. The controller is electrically connected to the feeding valve and the discharging valve of each fluidized bed respectively. The embodiments of the present application can improve the modification efficiency of silica.

Description

New type silica modification equipment

technical field

The application relates to the technical field of white carbon black production equipment, in particular to a new type of white carbon black modification equipment.

Background technique

Silica is a porous material, and the composition of silica can be represented by SiO2·nH2O, where nH2O exists in the form of surface hydroxyl groups. Silica is soluble in caustic alkali and hydrofluoric acid, but insoluble in water, solvents and acids (except hydrofluoric acid). Silica has the characteristics of high temperature resistance, non-flammability, tasteless and odorless, and has good electrical insulation.

Dry modification is one of the commonly used industrial production methods for silica modification. It generally refers to the use of organic compounds as modifiers, silica and organic modifier steam in a fixed reactor or a fluidized bed reactor. , and react at high temperature for a certain time to achieve the purpose of modification. At present, in the process of modifying white carbon black, when the white carbon black is intensively modified, when the volume of white body black is large, it is easy to cause the accumulation of white carbon black. Extrusion of carbon black together will affect the modification effect of silica.

SUMMARY OF THE INVENTION

The purpose of this application is to provide a new type of silica modification equipment, which can solve the extrusion problem that occurs when the gravity of the silica is large when the volume of the silica is large, and achieves a technology for efficiently modifying the silica. Effect.

In the first aspect, the embodiment of the present application provides a new type of silica modification equipment, which includes a heating component, a powder conveying pump, a silo, and multiple fluidized beds. The heating component is arranged between the multiple fluidized beds, and the powder The feed port of the body conveying pump is connected to the silo through a pipeline; the fluidized bed includes a vertically arranged pipe body and an air inlet pipe arranged in the middle of the pipe body. The air inlet pipe is used for introducing nitrogen and modifier. A plurality of first air outlets are arranged in an array at different heights, the top of the pipe body is provided with a feed pipe connected to the discharge port of the powder conveying pump, the bottom of the pipe body is connected with a discharge pipe, and the top of the pipe body is provided with a feeding pipe. An outlet pipe is connected.

In a possible implementation manner, the end of the air intake pipe is provided with a second air outlet, and the second air outlet is disposed toward the bottom of the pipe body.

In a possible implementation, it also includes a controller, a feeding valve is provided on the feeding pipe, and a discharging valve is provided on the discharging pipe, and the controller is separately connected to the feeding valve and the discharging valve of each fluidized bed. electrical connection.

In a possible implementation manner, the bottom of the pipe body is provided with a conical discharge portion, and the discharge pipe is provided at the bottom of the discharge portion.

In a possible implementation manner, an intake valve is provided on the intake pipe, an outlet valve is provided on the exhaust pipe, the intake pipe and the exhaust pipe are respectively connected to the air storage tank, an air pump is provided on the intake pipe, the intake valve, The air pump and the air outlet valve are respectively electrically connected with the controller.

In a possible implementation manner, the heating assembly includes a plurality of heating cylinders, the pipe bodies of the multiple fluidized beds are respectively arranged in the heating cylinder, and the heating cylinder is provided with a helical first heating wire. The first heating wires are respectively electrically connected with the controller.

In a possible implementation manner, the heating assembly includes a plurality of heating tiles, the tubes of the plurality of fluidized beds are respectively disposed close to the heating tiles, the heating tiles are provided with second heating filaments, and the second heating filaments of the plurality of heating tiles They are respectively electrically connected with the controller.

In a possible implementation manner, the outer side wall of the air intake pipe is disposed close to the top of the heating assembly.

In a possible implementation manner, the heating assembly is provided with a first temperature sensor, and the first temperature sensor is electrically connected to the controller.

In a possible implementation manner, a second temperature sensor is provided in the intake pipe, and the second temperature sensor is electrically connected to the controller.

A new type of silica modification equipment provided in the embodiments of the present application has the following beneficial effects:

Silica can be efficiently modified through a vertically arranged fluidized bed, and a single fluidized bed can be divided into multiple fluidized beds with smaller volumes to modify silica, reducing the size of a single fluidized bed. The extrusion of the white carbon black inside can reduce the extrusion of the white carbon black at the bottom when the white carbon black is modified, can improve the modification uniformity of the white carbon black, and improve the modification efficiency of the white carbon black.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the novel silica modification equipment in the embodiment of the present application;

Fig. 2 is the partial structure schematic diagram of the A place of the novel silica modification equipment in Fig. 1;

Fig. 3 is the internal structure schematic diagram of the fluidized bed of the novel silica modification equipment in the embodiment of the present application;

Fig. 4 is the top-view structure schematic diagram of the heating tile of the novel silica modification equipment in the embodiment of the present application;

In the figure, 100, heating assembly; 110, heating cylinder; 111, first heating wire; 120, heating tile; 121, second heating wire; 200, powder conveying pump; 300, silo; 400, fluidized bed; 410, pipe body; 411, discharge part; 420, air inlet pipe; 421, first air outlet; 422, second air outlet; 423, air inlet valve; 424, air pump; 430, feeding pipe; 431, feeding valve; 440, discharge pipe; 441, discharge valve; 450, air outlet; 451, air outlet valve; 460, air storage tank.

Detailed ways

Please refer to the drawings, wherein the same reference numerals represent the same components, and the principles of the present application are exemplified by being implemented in an appropriate usage environment. The following description is based on illustrated specific embodiments of the present application and should not be construed as limiting other specific embodiments of the present application not detailed herein.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

When modifying silica, there is a modification device that uses a vertically arranged fluidized bed to modify silica. When silica is modified in a vertically arranged fluidized bed, the convection fluidization can be improved. However, due to the large volume of silica, the silica in the fluidized bed will be squeezed by gravity, resulting in poor modification effect on silica.

Based on the above reasons, the embodiments of the present application provide a new type of silica modification equipment, which can efficiently modify silica through a vertically arranged fluidized bed, and at the same time divide a single fluidized bed into smaller volumes. The modification of silica by multiple fluidized beds reduces the extrusion of the silica in a single fluidized bed, which can reduce the extrusion of the silica at the bottom when the silica is modified, and can improve the performance of the silica. The modification uniformity of silica improves the modification efficiency of silica.

In some scenarios, the embodiments of the present application can be applied to a factory that modifies a large amount of silica, and a large amount of materials can be modified simultaneously through multiple fluidized beds, and the gravity of the silica can affect the silica. The modification process has little influence, and the modification efficiency of silica is improved.

In other scenarios, the embodiments of the present application can be applied to the modification process of high-quality silica. By setting up multiple fluidized beds, the modification effect of silica can be improved, and the modification effect of silica can be reduced. The influence of the white carbon black improves the modification effect of the white carbon black.

The novel silica modification equipment in the embodiments of the present application will be described below with reference to specific examples.

Figures 1 to 4 are schematic structural diagrams of the novel silica modification equipment in the embodiments of the present application, as shown in Figures 1 to 4, including a heating assembly 100, a powder delivery pump 200, a silo 300 and a plurality of In the fluidized bed 400, the heating component 100 is used to heat the material in the fluidized bed 400 (ie, the mixture of silica powder, nitrogen, and organic gas) to reach the temperature of silica modification.

Wherein, the heating assembly 100 is disposed between the multiple fluidized beds 400 , so that the heating assembly 100 can centrally heat the multiple fluidized beds 400 , thereby realizing the centralized heating of the multiple fluidized beds 400 .

The silo 300 is used to store the silica powder, and the feeding port of the powder conveying pump 200 is connected to the silo 300 through a pipeline, so that the silica powder in the silo 300 can enter the powder conveying pump 200 , and then transported to a plurality of fluidized beds 400 by the powder delivery pump 200 , so that the silica powder is modified in the fluidized beds 400 .

Wherein, the fluidized bed 400 includes a vertically arranged pipe body 410 and an air inlet pipe 420 arranged in the middle of the pipe body 410. The pipe body 410 is used for storing the silica powder, and the pipe body 410 is used for processing the silica powder. In the modified cavity, the air inlet pipe 420 is provided with a plurality of first air outlets 421 in an array at different heights. The air inlet pipe 420 is used to introduce nitrogen and modifier into the pipe body 410, so that the nitrogen and modifier It can enter into the pipe body 410 through the different first air outlets 421 on the intake pipe 420 to be fully mixed with the silica powder.

The top of the pipe body 410 is provided with a feed pipe 430 connected to the discharge port of the powder delivery pump 200 .

The bottom of the pipe body 410 is connected with a discharge pipe 440, through which the white carbon black powder can be discharged from the bottom of the pipe body to realize the discharge of the white carbon black powder. The finished product warehouse is connected to realize the collection of silica powder.

The top of the pipe body 410 is connected with an air outlet pipe 450, and the nitrogen gas and the modifier enter the pipe body 410 through the air inlet pipe 420, and then the nitrogen gas and the modifier are discharged from the air outlet pipe 450, so that the nitrogen gas and the modifier are discharged from the air outlet pipe 450. The purpose of the discharge of the tube body 410.

Specifically, the diameter of the fluidized bed 400 may be 20 cm to 40 cm, and the height of the fluidized bed 400 may be 50 cm to 80 cm, so that the volume of the fluidized bed 400 is small, the gravity of the powder in the fluidized bed 400 is small, and the effective Therefore, the extrusion problem of the silica powder caused by too much silica powder in the fluidized bed 400 is greatly reduced, and the uniformity of the silica powder during modification is improved.

In the embodiment of the present application, the silica powder is simultaneously modified by a plurality of fluidized beds 400, which effectively ensures the modification efficiency of the silica powder, and can ensure the modification uniformity of the silica powder without affecting the modification efficiency of the silica powder. The modification effect of the silica powder effectively ensures the efficiency of the modification process of the silica powder.

Among them, a cyclone dust collector or a bag filter can be installed on the air outlet pipe 450, so that the silica powder in the gas discharged from the air outlet pipe 450 can be separated from the gas, and the dust collected by the cyclone dust collector or the bag filter can be separated from the gas. The white carbon black powder enters the finished product warehouse, which improves the collection effect of the white carbon black powder.

In some embodiments, the end of the air inlet pipe 420 is provided with a second air outlet 422, and the second air outlet 422 is disposed toward the bottom of the pipe body 410. The second air outlet 422 can realize the flow of nitrogen and modifier from the second air outlet 422. 422 is discharged, so that the nitrogen gas and modifier discharged from the first air outlet 421 and the second air outlet 422 can be mixed with the silica powder, which improves the modification effect of the silica powder.

Here, nitrogen gas and modifier are discharged from the bottom of the air inlet pipe 420 through the second air outlet 422, so that the effect of blowing the silica powder upward from the bottom of the pipe body 410 is realized, and the fluidization of the silica powder is improved. As a result, the mixing effect of the white carbon black powder in the pipe body 410, nitrogen gas, and modifier is improved.

In some embodiments, a controller is also included, a feed valve 431 is provided on the feed pipe 430, and a discharge valve 441 is provided on the discharge pipe 440. The feeding valves 441 are respectively electrically connected, and the feeding valve 431 and the discharging valve 441 are centrally controlled by the controller, so as to realize the automatic control of feeding and discharging of each fluidized bed 400 .

In some embodiments, the bottom of the pipe body 410 is provided with a conical discharge part 411, so that the discharge part 411 can collect the silica powder, and the discharge pipe 440 is set at the bottom of the discharge part 411, so that the white carbon black powder can be collected by the discharge part 411. The carbon black powder can enter into the storage tank 440 from the discharge part 411 in a centralized manner, so as to realize the collection and discharge of the white carbon black powder.

In some embodiments, the air inlet pipe 420 is provided with an air intake valve 423, the air outlet pipe 450 is provided with an air outlet valve 451, the air intake pipe 420 and the air outlet pipe 450 are respectively connected to the air storage tank 460, and an air pump is provided on the air intake pipe 420 424, the gas storage tank 460 is used to store nitrogen, and nitrogen is added to the intake pipe 421 through the gas storage tank 460 during use, so as to realize the supplementation of nitrogen.

The air inlet valve 423, the air pump 424 and the air outlet valve 451 are respectively electrically connected to the controller, and the controller can realize the centralized control of the air pump 421, the air inlet valve 423 and the air outlet valve 451, which improves the automatic control of the embodiment of the present application degree.

In some embodiments, the heating assembly 100 includes a plurality of heating cylinders 110 , and the pipe bodies 410 of the plurality of fluidized beds 400 are respectively disposed in the heating cylinders 110 . The bed 400 is uniformly heated, which improves the effect of heating the fluidized bed 400 .

The heating cylinder 110 is provided with a spiral first heating wire 111 , and each heating cylinder 110 can be heated from the inside through the first heating wire 111 , thereby improving the heating effect of the heating cylinder 110 .

Specifically, the first heating wires 111 of the plurality of heating cylinders 110 are respectively electrically connected to the controller, so that the controller can automatically control the heating process of the plurality of heating cylinders 110 .

In other embodiments, the heating assembly 100 includes a plurality of heating tiles 120, the cross-section of the heating tiles 120 is arc-shaped, and the pipe bodies 410 of the plurality of fluidized beds 400 are respectively disposed close to the heating tiles 120, so that the heating tiles 120 can The tube body 410 is heated from one side of the fluidized bed 400 , which improves the heating effect of the tube body 410 .

Specifically, the heating tile 120 is provided with a second heating wire 121 , and the heating tile 120 can be heated by the second heating wire 121 , thereby realizing the heating and heating of the heating tile 120 .

The second heating wires 121 are respectively electrically connected to the controller, so that the controller can automatically control the working state of the second heating wires 121 .

In some embodiments, the outer sidewall of the air inlet pipe 420 is disposed near the top of the heating assembly 100 , so that when the nitrogen gas and the modifier in the air inlet pipe 420 flow through the air inlet pipe 420 , the nitrogen gas and the modifier can be preheated by heat absorption , the heating effect of nitrogen and modifier is improved, and the modification effect of nitrogen and modifier in the intake pipe 420 on silica powder is improved.

In some embodiments, the heating assembly 100 is provided with a first temperature sensor, the first temperature sensor is electrically connected to the controller, and the temperature in the heating assembly 100 can be detected by the first temperature sensor, so that the controller can detect the temperature in the heating assembly 100 according to the first temperature The temperature value detected by the sensor controls the working power of the first heating wire 111 or the second heating wire 121 , realizes feedback control of the temperature of the heating assembly 100 , and improves the temperature control effect of the heating assembly 100 .

In some embodiments, the intake pipe 420 is provided with a second temperature sensor, the second temperature sensor is electrically connected to the controller, the temperature of the nitrogen gas and the modifier can be sensed by the second temperature sensor, and the temperature of the nitrogen gas and the modifier can be sensed according to the temperature of the nitrogen gas and the modifier. The heating power of the heating component 100 can be controlled by the temperature of the high temperature, and the temperature control effect of the mixture of the silica powder, nitrogen and the modifier is further improved, and the temperature control effect of the modification process of the silica powder is improved.

The terms "a" and "" and similar words are used in describing concepts of the present application (particularly in the appended claims) and should be construed to encompass both the singular and the plural. Furthermore, unless otherwise indicated herein, recitation of numerical ranges herein is merely by way of shorthand to refer to each separate value belonging to the relevant range, and each separate value is incorporated into the specification as if These values are individually stated in this document. Additionally, the steps of all methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. Variations of the present application are not limited to the order of steps described. Unless otherwise claimed, any and all examples or exemplary language provided herein (eg, "such as") are used merely to better illustrate the concepts of the present application and are not intended to limit the scope of the concepts of the present application. Various modifications and adaptations will be readily apparent to those skilled in the art without departing from the spirit and scope.

The devices, equipment and their working principles provided by the embodiments of the present application have been described in detail above. The principles and implementations of the present application are described with specific examples in this paper. The descriptions of the above embodiments are only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as a Application restrictions.

Claims (10)

1. The novel white carbon black modification equipment is characterized by comprising a heating assembly (100), a powder delivery pump (200), a storage bin (300) and a plurality of fluidized beds (400), wherein the heating assembly (100) is arranged among the plurality of fluidized beds (400), and a feed inlet of the powder delivery pump (200) is connected with the storage bin (300) through a pipeline;

fluidized bed (400) are equipped with intake pipe (420) including body (410) of vertical setting and in the middle of locating body (410), intake pipe (420) are used for letting in nitrogen gas and modifier, be equipped with a plurality of first gas outlets (421) on intake pipe (420) on different heights with array, the top of body (410) is equipped with inlet pipe (430) of being connected with the discharge gate of powder delivery pump (200), the bottom of body (410) is connected with discharging pipe (440), the top of body (410) is connected with outlet duct (450).

2. The novel white carbon black modifying apparatus according to claim 1, wherein the end of the air inlet pipe (420) is provided with a second air outlet (422), and the second air outlet (422) is disposed toward the bottom of the pipe body (410).

3. The novel white carbon black modification apparatus according to claim 1, further comprising a controller, wherein the feeding pipe (430) is provided with a feeding valve (431), the discharging pipe (440) is provided with a discharging valve (441), and the controller is electrically connected to the feeding valve (431) and the discharging valve (441) of each fluidized bed (400).

4. A novel white carbon black modifying device as claimed in claim 3, wherein the bottom of the tube body (410) is provided with a conical discharging portion (411), and the discharging tube (440) is arranged at the bottom of the discharging portion (411).

5. The novel white carbon black modifying equipment according to claim 3, wherein an air inlet valve (423) is disposed on the air inlet pipe (420), an air outlet valve (451) is disposed on the air outlet pipe (450), the air inlet pipe (420) and the air outlet pipe (450) are respectively connected to the air storage tank (460), an air pump (424) is disposed on the air inlet pipe (420), and the air inlet valve (423), the air pump (424) and the air outlet valve (451) are respectively electrically connected to the controller.

6. The novel white carbon black modifying apparatus according to claim 3, wherein the heating assembly (100) includes a plurality of heating cylinders (110), the tubes (410) of the plurality of fluidized beds (400) are respectively disposed in the heating cylinders (110), a spiral first heating wire (111) is disposed in the heating cylinders (110), and the first heating wires (111) of the plurality of heating cylinders (110) are respectively electrically connected to the controller.

7. The novel white carbon black modifying apparatus according to claim 3, wherein the heating assembly (100) includes a plurality of heating tiles (120), the pipe bodies (410) of the plurality of fluidized beds (400) are respectively disposed near the heating tiles (120), the second heating wires (121) are disposed in the heating tiles (120), and the second heating wires (121) of the plurality of heating tiles (120) are respectively electrically connected to the controller.

8. A novel white carbon black modifying apparatus according to claim 6 or 7, wherein the outer sidewall of the air inlet pipe (420) is disposed near the top of the heating assembly (100).

9. A novel white carbon black modifying device according to claim 6 or 7, wherein a first temperature sensor is disposed in the heating assembly (100), and the first temperature sensor is electrically connected to the controller.

10. The novel white carbon black modifying apparatus according to claim 1, wherein a second temperature sensor is disposed in the air inlet pipe (420), and the second temperature sensor is electrically connected to the controller.

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