CN114136122A

CN114136122A - White carbon black slurry heat exchange device

Info

Publication number: CN114136122A
Application number: CN202111549571.7A
Authority: CN
Inventors: 陈南飞; 卢爱平; 王明贺; 陈辰; 陈家树; 史彤
Original assignee: Wuxi Hengcheng Silicon Industrial Co ltd
Current assignee: Wuxi Hengcheng Silicon Industrial Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-03-04

Abstract

The invention discloses a white carbon black slurry heat exchange device, which belongs to the field of white carbon black production and comprises a tank body and a heat exchange assembly, wherein the tank body comprises a first sealing cover, a cylinder body and a second sealing cover which are detachably connected from top to bottom; the heat exchange assembly is arranged in the barrel and comprises a plurality of pipelines, the pipelines comprise at least one air inlet pipe, at least one air outlet pipe and a plurality of heat exchange pipes, the pipelines are uniformly distributed in the barrel, the adjacent pipelines are communicated through the connecting pipes, steam can flow along a plurality of directions, the heat exchange is uniform, white carbon black slurry is prevented from forming gel, and blocking is avoided. The corrosion-resistant layer is coated on the outer wall of the pipeline, so that the pipeline corrosion can be avoided, the service life is prolonged, and the maintenance cost is reduced.

Description

White carbon black slurry heat exchange device

Technical Field

The invention relates to the field of white carbon black production, in particular to a white carbon black slurry heat exchange device.

Background

The white carbon black is used as an environment-friendly auxiliary agent with excellent performance and is mainly used in the fields of rubber products, textiles, papermaking, pesticides, food additives and the like. In the current industrial production, the white carbon black production method mainly comprises a precipitation method and a gas phase method, wherein the precipitation method is commonly used, and the main raw materials comprise quartz sand, sodium carbonate, industrial acid, carbon dioxide and the like. The precipitation method includes various specific methods such as an acid method, a sol method, and a carbonization method.

The production of white carbon black by acid method is carried out by reacting soluble silicate with sulfuric acid (or other acids), stopping acid addition reaction when reaction solution reaches certain PH value, aging, filtering, washing with water for several times, removing sodium sulfate, drying and crushing to obtain final product.

When the white carbon black slurry is washed, the materials are washed by normal temperature water, and the oil absorption index of the finished product after washing is low, so that in the prior art, when the white carbon black slurry is washed, heat exchange is mostly carried out through a tubular heat exchanger, the aim of heating the slurry and washing water is fulfilled, and the washing effect is improved.

The existing tubular heat exchanger comprises a plurality of heat exchange tubes, and a medium flows in the heat exchange tubes along a single direction, so that the heat exchange of the white carbon black slurry is uneven, the white carbon black slurry forms gel in the inner pipeline of the heat exchanger, and the gel is bonded on the inner wall of the pipeline to cause blockage. In addition, a large amount of sodium sulfate exists in the white carbon black slurry, so that the pipe wall of the heat exchanger is easily corroded, and slurry leakage is caused.

Disclosure of Invention

The invention aims to provide a white carbon black slurry heat exchange device to solve the technical problems that heat exchange is not uniform and a pipe wall is easy to corrode in the prior art.

As the conception, the technical scheme adopted by the invention is as follows:

a white carbon black slurry heat exchange device comprises:

the tank body comprises a first sealing cover, a cylinder body and a second sealing cover which are detachably connected from top to bottom, wherein a material inlet is formed in the first sealing cover, a material outlet is formed in the second sealing cover, a water inlet is formed in one side of the bottom of the cylinder body, and a water outlet is formed in one side of the top of the cylinder body;

the heat exchange assembly is arranged in the barrel and comprises a plurality of pipelines which are uniformly distributed in the barrel, the pipelines are communicated and a plurality of through connecting pipes, the pipelines comprise at least one air inlet pipe, at least one air outlet pipe and a plurality of heat exchange pipes, and the outer wall of each pipeline is coated with a corrosion-resistant layer.

The pipelines in a plurality of rows are arranged in a first direction to form a row, the pipelines in a plurality of rows are arranged at intervals in a second direction, every two pipelines in each row are communicated through the connecting pipe, and in two adjacent rows, two adjacent pipelines are communicated through the connecting pipe.

The pipelines in two adjacent rows are arranged at intervals, and an included angle between the first direction and the second direction is an obtuse angle.

The gas inlet pipe is provided with one, the gas outlet pipe is provided with one, and the gas inlet pipe and the gas outlet pipe are respectively located at the two radial ends of the cylinder body.

The pipelines are arranged in a circle around the circumference of the barrel, a plurality of circles of the pipelines are arranged layer by layer from outside to inside, every two circles of the pipelines are communicated through the connecting pipe, and every two adjacent circles of the pipelines are communicated through the connecting pipe along the radial direction.

The air inlet pipe is arranged in the outermost circle of the pipeline, and the air outlet pipe is arranged in the innermost circle of the pipeline.

The upper part of the cylinder body is provided with a water feeding exhaust port which is higher than the water outlet.

Wherein, the upper end of barrel is provided with first mounting panel, first closing cap with first mounting panel is connected, first mounting panel is the perforated plate.

The lower end of the first sealing cover is provided with a first flange, the first mounting plate is provided with a second flange, the first flange is provided with a first accommodating groove, the second flange is provided with a first protrusion, the first protrusion can be inserted into the first accommodating groove, and the first flange is connected with the second flange through bolts.

The upper end of the heat exchange tube is connected with the first mounting plate, and the lower end of the heat exchange tube is provided with a plug.

The invention has the beneficial effects that:

according to the white carbon black slurry heat exchange device provided by the invention, white carbon black slurry enters from the material inlet on the first sealing cover and flows out from the material outlet on the second sealing cover, washing water enters from the water inlet of the barrel and flows out from the water outlet of the barrel, and in the process of washing the white carbon black slurry by the washing water, the white carbon black slurry is in contact with the heat exchange assembly in the barrel to exchange heat and raise the temperature, so that the washing effect is improved. The used vapour of heat transfer gets into from the intake pipe, through each heat exchange tube, flows from the outlet duct, because through the connecting pipe intercommunication between the adjacent pipeline, consequently vapour can flow along a plurality of directions for fill into vapour rapidly in each pipeline, guarantee that the heat transfer is even, prevent that white carbon black thick liquids from forming the gel, avoid blockking up. Because the outer wall of the pipeline is coated with the corrosion-resistant layer, the pipeline can be prevented from being corroded, the service life is prolonged, and the maintenance cost is reduced.

Drawings

Fig. 1 is a schematic view of a white carbon black slurry heat exchange device according to an embodiment of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

fig. 3 is a cross-sectional view of a white carbon black slurry heat exchange device according to a first embodiment of the present invention;

fig. 4 is a cross-sectional view of a white carbon black slurry heat exchange device according to a second embodiment of the present invention.

In the figure:

11. a first cover; 111. a material inlet; 112. a material exhaust port; 12. a barrel; 121. a water inlet; 122. a water outlet; 123. a sewage draining outlet; 124. a water feeding exhaust port; 13. a second cover; 131. a material outlet; 14. a first mounting plate; 141. a first protrusion; 15. a first flange; 151. a first accommodating groove;

21. an air inlet pipe; 22. an air outlet pipe; 23. a heat exchange pipe; 24. a connecting pipe;

30. and (3) a filter.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

Referring to fig. 1 to 3, an embodiment of the present invention provides a white carbon black slurry heat exchange device, which includes a tank body and a heat exchange assembly, where the heat exchange assembly is disposed in the tank body, and when white carbon black slurry flows through the tank body, the white carbon black slurry contacts with the heat exchange assembly to exchange heat.

The tank body comprises a first sealing cover 11, a barrel body 12 and a second sealing cover 13 which are detachably connected from top to bottom, a material inlet 111 is formed in the first sealing cover 11, a material outlet 131 is formed in the second sealing cover 13, a water inlet 121 is formed in one side of the bottom of the barrel body 12, and a water outlet 122 is formed in one side of the top of the barrel body 12. Can dismantle first closing cap 11, barrel 12 and the second closing cap 13 of connection, be convenient for change inside heat exchange assemblies, also be convenient for wash and maintain jar internal portion.

The first cover 11 is further provided with a material exhaust port 112, the material exhaust port 112 is located on one side of the material inlet 111, and the material exhaust port 112 is used for exhausting hot air of the material.

White carbon black slurry enters from a material inlet 111 on the first sealing cover 11 and flows out from a material outlet 131 on the second sealing cover 13, washing water enters from a water inlet 121 of the cylinder 12 and flows out from a water outlet 122 of the cylinder 12, and in the process of washing the white carbon black slurry by the washing water, the white carbon black slurry contacts with a heat exchange assembly in the cylinder 12 to exchange heat and heat, so that the washing effect is improved.

Heat exchange assemblies sets up in barrel 12, and the upper end of barrel 12 is provided with first mounting panel 14, and first closing cap 11 is connected with first mounting panel 14, and first mounting panel 14 is the perforated plate. The perforated plate can carry out the water conservancy diversion to white carbon black thick liquids for white carbon black thick liquids evenly flow in barrel 12, so that white carbon black thick liquids fully contact with heat exchange assembly.

Specifically, the lower end of the first sealing cover 11 is provided with a first flange 15, the first mounting plate 14 is provided with a second flange, the first flange 15 is provided with a first accommodating groove 151, the second flange is provided with a first protrusion 141, the first protrusion 141 can be inserted into the first accommodating groove 151, and the first flange 15 is connected with the second flange through a bolt. The first protrusion 141 and the first receiving groove 151 are engaged to play a positioning role, so as to facilitate connection between the first cover 11 and the barrel 12.

The lower extreme of barrel 12 is provided with the second mounting panel, and second closing cap 13 is connected with the second mounting panel, and the second mounting panel is the perforated plate. The perforated plate can carry out the water conservancy diversion to white carbon black thick liquids for white carbon black thick liquids even outflow barrel 12, so that prevent that white carbon black thick liquids from piling up the jam.

Specifically, the upper end of the second sealing cover 13 is provided with a third flange, the second mounting plate is provided with a fourth flange, the third flange is provided with a second accommodating groove, the fourth flange is provided with a second protrusion, the second protrusion can be inserted into the second accommodating groove, and the third flange is connected with the fourth flange through a bolt. The second protrusion is matched with the second accommodating groove to play a positioning role, so that the second sealing cover 13 and the barrel 12 can be conveniently connected.

Wherein, first closing cap 11 and first flange 15 welding, first mounting panel 14 and second flange integrated into one piece. The second cover 13 is welded with the third flange, and the second mounting plate and the fourth flange are integrally formed.

A filter 30 is arranged on the second mounting plate, the filter 30 covering all the holes in the perforated plate. The washed white carbon black slurry passes through the filter 30 and then flows out of the material outlet 131 through the second mounting plate. The filter 30 can trap contaminants in the white carbon black slurry.

A drain outlet 123 is formed at one side of the bottom of the drum 12, and sewage can be discharged through the drain outlet 123. The drain outlet 123 is disposed opposite to the water inlet 121.

The upper part of the cylinder 12 is provided with an upper water exhaust port 124, and the upper water exhaust port 124 is higher than the water outlet 122 so as to exhaust hot gas generated in the washing and heat exchange processes.

The heat exchange assembly comprises a plurality of pipelines which are uniformly distributed in the cylinder 12, the adjacent pipelines are communicated through a connecting pipe 24, the pipelines comprise at least one air inlet pipe 21, at least one air outlet pipe 22 and a plurality of heat exchange pipes 23, and a corrosion-resistant layer is laid on the outer wall of each pipeline.

The used steam of heat transfer gets into from intake pipe 21, through each heat exchange tube 23, flows from outlet duct 22, because communicate through connecting pipe 24 between the adjacent pipeline, consequently steam can flow along a plurality of directions for fill steam rapidly in each pipeline, guarantee that the heat transfer is even, prevent that white carbon black thick liquids from forming the gel, avoid blockking up. Because the outer wall of the pipeline is coated with the corrosion-resistant layer, the pipeline can be prevented from being corroded, the service life is prolonged, and the maintenance cost is reduced.

Specifically, one end of the air inlet pipe 21 is connected to the first mounting plate 14, and the other end of the air inlet pipe 21 is connected to the second mounting plate, so as to fix the air inlet pipe 21. One end of the outlet pipe 22 is connected with the first mounting plate 14, and the other end of the outlet pipe 22 is connected with the second mounting plate to fix the outlet pipe 22. The upper end of the heat exchange tube 23 is connected with the first mounting plate 14, and the lower end of the heat exchange tube 23 is provided with a plug.

In this embodiment, the intake pipe 21 is provided with one, and the outlet duct 22 is provided with one, and intake pipe 21 and outlet duct 22 are located the radial both ends of barrel 12 respectively to make intake pipe 21 and outlet duct 22 apart from far away, make the flow path of vapour longer, vapour can fully contact with the pipeline, improve the heat transfer effect.

The air inlet of the air inlet pipe 21 is positioned at the bottom of the air inlet pipe 21, and the air outlet of the air outlet pipe 22 is positioned at the top of the air outlet pipe 22.

In this embodiment, a plurality of pipelines are arranged along the first direction to form one row, and a plurality of pipelines are arranged along the second direction at intervals, and every two pipelines of each row are communicated through a connecting pipe 24, and in two adjacent rows of pipelines, two adjacent pipelines are communicated through a connecting pipe 24.

In this embodiment, two adjacent rows of pipelines are arranged at intervals to make full use of space, the included angle between the first direction and the second direction is an obtuse angle. A indicated by an arrow in FIG. 3 is a first direction and B is a second direction.

Along the length direction of every pipeline, the interval is provided with a plurality of connecting pipes 24 to in making vapour fill each pipeline rapidly along a plurality of directions, guarantee that the heat transfer is even, prevent that white carbon black thick liquids from forming the gel, avoid blockking up.

Example two

Fig. 4 shows a second embodiment, wherein the same or corresponding parts as in the first embodiment are provided with the same reference numerals as in the first embodiment. For the sake of simplicity, only the differences between the second embodiment and the first embodiment will be described. The difference is that a plurality of pipelines are arranged around the circumference of the cylinder 12 to form a circle, a plurality of circles of pipelines are arranged layer by layer from outside to inside, every two circles of pipelines are communicated through a connecting pipe 24, and two adjacent pipelines in every two adjacent circles of pipelines are communicated through the connecting pipe 24 along the radial direction. Because the barrel 12 is cylindrical, the volume inside the barrel 12 can be more fully utilized by arranging the pipeline in a circle.

The outermost ring of pipelines is an air inlet pipe 21, and the innermost ring of pipelines is an air outlet pipe 22. Make vapour from the outside inwards flow, because outside pipeline is nearer apart from the outer wall of barrel 12, consequently the heat dissipation is fast, lets in the outermost pipeline of high temperature vapour, along with vapour inwards flow, the temperature of vapour reduces, but the heat dissipation of inside pipeline is slow, consequently can guarantee that the heat transfer is even.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a white carbon black thick liquids heat transfer device which characterized in that includes:

the tank comprises a first sealing cover (11), a cylinder body (12) and a second sealing cover (13) which are detachably connected from top to bottom, wherein the first sealing cover (11) is provided with a material inlet (111), the second sealing cover (13) is provided with a material outlet (131), one side of the bottom of the cylinder body (12) is provided with a water inlet (121), and one side of the top of the cylinder body (12) is provided with a water outlet (122);

the heat exchange assembly, set up in barrel (12), heat exchange assembly includes a plurality of pipelines, and is a plurality of the pipeline in evenly distributed in barrel (12), it is adjacent through connecting pipe (24) intercommunication between the pipeline, it is a plurality of the pipeline includes at least one intake pipe (21), at least one outlet duct (22) and a plurality of heat exchange tube (23), the coating has the corrosion resistant layer on the outer wall of pipeline.

2. The white carbon black slurry heat exchange device according to claim 1, wherein a plurality of the pipelines are arranged in a first direction to form a row, a plurality of rows of the pipelines are arranged at intervals in a second direction, every two pipelines in each row are communicated with each other through the connecting pipe (24), and two adjacent pipelines in two adjacent rows of the pipelines are communicated with each other through the connecting pipe (24).

3. The white carbon black slurry heat exchange device according to claim 2, wherein two adjacent rows of the pipelines are arranged alternately, and an included angle between the first direction and the second direction is an obtuse angle.

4. The white carbon black slurry heat exchange device according to claim 2, wherein one air inlet pipe (21) and one air outlet pipe (22) are provided, and the air inlet pipe (21) and the air outlet pipe (22) are respectively located at two radial ends of the cylinder body (12).

5. The white carbon black slurry heat exchange device according to claim 1, wherein a plurality of pipelines are arranged around the circumference of the cylinder body (12) to form a circle, a plurality of circles of pipelines are arranged layer by layer from outside to inside, every two circles of pipelines are communicated with each other through the connecting pipe (24), and two radially adjacent circles of pipelines are communicated with each other through the connecting pipe (24).

6. The white carbon black slurry heat exchange device according to claim 2, wherein the outermost ring of the pipeline is the air inlet pipe (21), and the innermost ring of the pipeline is the air outlet pipe (22).

7. The white carbon black slurry heat exchange device according to claim 1, wherein an upper water outlet (124) is disposed at an upper portion of the cylinder (12), and the upper water outlet (124) is higher than the water outlet (122).

8. White carbon black slurry heat exchange device according to any one of claims 1 to 7, wherein a first mounting plate (14) is disposed at an upper end of the cylinder (12), the first cover (11) is connected to the first mounting plate (14), and the first mounting plate (14) is a porous plate.

9. The white carbon black slurry heat exchange device according to claim 8, wherein a first flange (15) is arranged at a lower end of the first cover (11), a second flange is arranged on the first mounting plate (14), a first accommodating groove (151) is formed in the first flange (15), a first protrusion (141) is arranged on the second flange, the first protrusion (141) can be inserted into the first accommodating groove (151), and the first flange (15) is connected with the second flange through a bolt.

10. The white carbon black slurry heat exchange device according to claim 8, wherein the upper ends of the heat exchange tubes (23) are connected with the first mounting plate (14), and the lower ends of the heat exchange tubes (23) are provided with plugs.