High-temperature flue gas washing water heat recycling system

Abstract

The utility model belongs to the technical field of flue gas heat energy recovery, and particularly relates to a high-temperature flue gas washing water heat recycling system which comprises a water cooling tower, a deslagging clear liquid tank and an adsorption tower feeding tank are arranged on one side of the water cooling tower, and a pipeline is connected between the deslagging clear liquid tank and the adsorption tower feeding tank; a heat exchange mechanism is arranged between the deslagging clear liquid tank and the adsorption tower feeding tank, the heat exchange mechanism comprises a heat exchanger, a pipeline is connected between the water cooling tower and the heat exchanger, and a heating tank is arranged on one side of the heat exchanger; the heat exchanger, the heating tank, the stirring device and other structures are matched with the heating barrel to heat materials, the heated materials are conveyed into the feeding tank of the adsorption tower, washing water in the water cooling tower can be cooled, materials in the slag removal clear liquid tank can be cooled, and therefore use of steam is reduced, and energy consumption is reduced. And resources can be recycled, the utilization rate of the resources is increased, and the cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas heat energy recovery, and in particular relates to a high-temperature flue gas washing water heat recovery and utilization system. Background Art

[0002] Granular carbon is divided into shaped and unshaped particles. It is mainly made of coconut shells, fruit shells and coal, etc., and is refined through a series of production processes. It is widely used in chemical industry, electronics, medicine, printing and dyeing, food and domestic water, industrial water, solution filtration, adsorption purification, impurity removal, and can also be used for deep purification of industrial wastewater.

[0003] In the granular carbon regeneration process, after the washing tower treats the high-temperature flue gas, the water temperature in the tower is relatively high, and when feeding the adsorption tower, the material needs to be steam-heated before being placed into the adsorption tower. However, when existing factories process granular carbon, the residual heat of the washing tower is difficult to reuse, and a large amount of steam is required when feeding the adsorption tower, which not only reduces the utilization rate of resources, but also increases the production cost.

[0004] In order to solve the above problems, this application proposes a high-temperature flue gas scrubbing water heat recovery and utilization system. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a high-temperature flue gas scrubbing water heat recovery and utilization system, which has the characteristics of reducing the use of steam, improving the utilization rate of resources and saving costs.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-temperature flue gas scrubbing water heat recovery and utilization system, comprising:

[0008] A cooling tower, wherein a slag removal and clear liquid tank and an adsorption tower feed tank are arranged on one side of the cooling tower, and a pipeline is connected between the slag removal and clear liquid tank and the adsorption tower feed tank;

[0009] A heat exchange mechanism is arranged between the slag removal and clear liquid tank and the adsorption tower feed tank, and the heat exchange mechanism includes a heat exchanger. A pipeline is connected between the cooling tower and the heat exchanger. A heating tank is arranged on one side of the heat exchanger. The heating tank is respectively connected to the slag removal and clear liquid tank and the adsorption tower feed tank through pipelines. A circulation component is arranged between the heat exchanger and the heating tank.

[0010] As a preferred high-temperature flue gas washing water heat recovery and utilization system of the utility model, the circulation component includes a water pump arranged between a cooling tower and a heat exchanger, the water inlet end of the water pump is connected to the cold water end of the heat exchanger, the water outlet end of the water pump is connected to the cooling tower, a heat pipe is arranged inside the heating tank, and the hot water end and the cold water end of the heat exchanger are respectively connected to the two ends of the heat pipe.

[0011] As a preferred embodiment of the utility model of a high-temperature flue gas washing water heat recovery and utilization system, a stirring device is arranged inside the heating tank, and the stirring device includes a heating cylinder fixed inside the heating tank, and the bottom of the heating cylinder is fixed to the bottom of the inner wall of the heating tank, and the heat pipe is arranged between the heating cylinder and the heating tank. The medium for heat exchange in the heat exchanger can be transported to the heat pipe through the heat pipe, thereby improving the heat exchange efficiency of the heat exchanger, and the heat pipe can heat the heating cylinder.

[0012] As a preferred embodiment of the utility model of a high-temperature flue gas washing water heat recovery and utilization system, a motor is arranged on the top of the heating tank, a lifting cylinder is arranged on the output shaft of the motor, a rotating rod is arranged between the lifting cylinder and the heating tank, a plurality of stirring plates are fixed on the rotating rod, and the lifting cylinder and the plurality of stirring plates are arranged inside the motor.

[0013] As a preferred embodiment of the utility model of a high-temperature flue gas washing water heat recovery and utilization system, a first gear is fixed on the output shaft of the motor, a second gear is fixed on the top of the rotating rod, a third gear meshing with each other is arranged between the first gear and the second gear, the output shaft of the motor passes through the lifting cylinder and is fixed to the first gear, the top of the rotating rod passes through the lifting cylinder and is fixed to the second gear, and the bottom of the rotating rod is rotatably installed on the bottom of the inner wall of the heating tank.

[0014] As a preferred embodiment of the high-temperature flue gas scrubbing water heat recovery system of the utility model, a positioning rod is eccentrically fixed to one side of the third gear, and an annular groove matched with the positioning rod is opened on the inner wall of the lifting cylinder.

[0015] As a preferred embodiment of the utility model of a high-temperature flue gas scrubbing water heat recovery and utilization system, two scraping plates are symmetrically fixed to the outer wall of the lifting cylinder, and the opposite ends of the two scraping plates are in contact with the inner wall of the heat conduction pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The materials are heated by the heating cylinders of the heat exchanger, heating tank and stirring device. The heated materials are transported to the inside of the adsorption tower feed tank, which can cool down the washing water of the cooling tower and the materials in the slag removal and clear liquid tank, thereby not only reducing the use of steam, but also realizing the recycling of resources, improving the utilization rate of resources and saving costs;

[0018] 2. Through the cooperation of the heating tank and the stirring device, the rotating rod drives multiple rotations, thereby stirring the material inside the heating cylinder, so that the material is heated quickly and evenly, thereby greatly improving the heating efficiency of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0021] Figure 2 This is the second structural diagram of the utility model;

[0022] Figure 3 For this utility model Figure 1 A schematic diagram of the cross-sectional structure of the middle heating tank;

[0023] Figure 4 For this utility model Figure 3 The structural diagram of the stirring device;

[0024] Figure 5 For this utility model Figure 4 Schematic diagram of the cross-sectional structure of the middle lifting cylinder.

[0025] In the figure: 1. cooling tower; 2. heat exchanger; 3. slag removal and clear liquid tank; 4. adsorption tower feed tank; 5. heating tank; 6. stirring device; 601. stirring plate; 602. motor; 603. heating cylinder; 604. lifting cylinder; 605. rotating rod; 606. scraping plate; 607. third gear; 608. first gear; 609. second gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1 A high-temperature flue gas scrubbing water heat recovery and utilization system is shown, comprising:

[0028] A cooling tower 1 is provided with a slag removal and clear liquid tank 3 and an adsorption tower feed tank 4 on one side of the cooling tower 1. A pipeline is connected between the slag removal and clear liquid tank 3 and the adsorption tower feed tank 4, and the pipeline is made of corrosion-resistant material.

[0029] As can be seen from the above, when in use, the high-temperature smoke is first processed through the cooling tower 1, and then the material inside the slag removal and liquid removal tank 3 is heated by steam, so that the heated material is transported to the adsorption tower feed tank 4.

[0030] refer to Figure 1-Figure 3 As shown, a heat exchange mechanism is arranged between the slag removal and clear liquid tank 3 and the adsorption tower feed tank 4, and the heat exchange mechanism includes a heat exchanger 2. A pipeline is connected between the cooling tower 1 and the heat exchanger 2. A heating tank 5 is arranged on one side of the heat exchanger 2. The heating tank 5 is respectively connected to the slag removal and clear liquid tank 3 and the adsorption tower feed tank 4 through pipelines, and a circulation component is arranged between the heat exchanger 2 and the heating tank 5.

[0031] The circulation component includes a water pump arranged between the cooling tower 1 and the heat exchanger 2, the water inlet end of the water pump is connected to the cold water end of the heat exchanger 2, and the water outlet end of the water pump is connected to the cooling tower 1. A heat pipe is arranged inside the heating tank 5, and the hot water end and the cold water end of the heat exchanger 2 are respectively connected to the two ends of the heat pipe.

[0032] By adopting the above technical solution:

[0033] When in use, the washing water inside the cooling tower 1 is transported to the heat exchanger 2 through a pipeline for heat exchange, and at the same time, the washing water flows into the heat pipe through the heat exchanger 2, so that the heat pipe heats the heating cylinder 603 and then cools the washing water. The cooled washing water flows into the heat exchanger 2 again and re-enters the interior of the cooling tower 1 through a water pump. The material inside the deslagging and clear liquid tank 3 is then put into the heating cylinder 603, and the material is heated by the heating cylinder 603. The heated material is then transported to the interior of the adsorption tower feed tank 4, thereby not only cooling the washing water in the cooling tower 1, but also cooling the material in the deslagging and clear liquid tank 3, thereby reducing the use of steam and saving resources.

[0034] In addition, refer to Figure 3-Figure 5 As shown, a stirring device 6 is provided inside the heating tank 5, and the stirring device 6 includes a heating tube 603 fixed inside the heating tank 5, the bottom of the heating tube 603 is fixed to the bottom of the inner wall of the heating tank 5, and a heat pipe is provided between the heating tube 603 and the heating tank 5. The medium for heat exchange in the heat exchanger 2 can be transported to the heat pipe through the heat pipe, thereby improving the heat exchange efficiency of the heat exchanger 2, and the heat pipe can heat the heating tube 603.

[0035] A motor 602 is arranged on the top of the heating tank 5, a lifting cylinder 604 is arranged on the output shaft of the motor 602, a rotating rod 605 is arranged between the lifting cylinder 604 and the heating tank 5, a plurality of stirring plates 601 are fixed on the rotating rod 605, and the lifting cylinder 604 and the plurality of stirring plates 601 are arranged inside the motor 602; a first gear 608 is fixed on the output shaft of the motor 602, a second gear 609 is fixed on the top of the rotating rod 605, and a third gear 608 is arranged between the first gear 608 and the second gear 609, which meshes with each other. 7. The output shaft of the motor 602 passes through the lifting cylinder 604 and is fixed to the first gear 608. The top of the rotating rod 605 passes through the lifting cylinder 604 and is fixed to the second gear 609, and the bottom of the rotating rod 605 is rotatably installed on the bottom of the inner wall of the heating tank 5. A positioning rod is eccentrically fixed to one side of the third gear 607, and an annular groove matching the positioning rod is provided on the inner wall of the lifting cylinder 604. Two scraping plates 606 are symmetrically fixed to the outer wall of the lifting cylinder 604, and the opposite ends of the two scraping plates 606 are in contact with the inner wall of the heat conduction tube.

[0036] By adopting the above technical solution:

[0037] When in use, the output shaft of the motor 602 drives the first gear 608 to rotate, the first gear 608 drives the third gear 607 meshing with it to rotate, the third gear 607 drives the second gear 609 meshing with it to rotate, the second gear 609 drives the rotating rod 605 to rotate, the rotating rod 605 drives multiple stirring plates 601 to rotate, so that the stirring plates 601 stir the material inside the heating cylinder 603, and at the same time the first gear 608 drives the positioning rod to rotate, so that the positioning rod moves along the inside of the annular groove, and the positioning rod drives the lifting cylinder 604 to move up and down through the annular groove, so that the lifting cylinder 604 cleans the inner wall of the heating cylinder 603, thereby greatly improving the efficiency of material heating.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-temperature flue gas scrubbing water heat recovery system, characterized in that: include: A cooling tower (1), wherein a slag removal and clear liquid tank (3) and an adsorption tower feed tank (4) are arranged on one side of the cooling tower (1), and a pipeline is connected between the slag removal and clear liquid tank (3) and the adsorption tower feed tank (4); A heat exchange mechanism is provided between the deslagging clear liquid tank (3) and the adsorption tower feed tank (4), the heat exchange mechanism comprising a heat exchanger (2), a pipeline is connected between the cooling tower (1) and the heat exchanger (2), a heating tank (5) is provided on one side of the heat exchanger (2), the heating tank (5) is connected to the deslagging clear liquid tank (3) and the adsorption tower feed tank (4) respectively through pipelines, and a circulation component is provided between the heat exchanger (2) and the heating tank (5).

2. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 1 is characterized in that: The circulation component comprises a water pump arranged between a cooling tower (1) and a heat exchanger (2), wherein a water inlet end of the water pump is connected to a cold water end of the heat exchanger (2), and a water outlet end of the water pump is connected to the cooling tower (1). A heat conduction pipe is arranged inside the heating tank (5), and a hot water end and a cold water end of the heat exchanger (2) are respectively connected to two ends of the heat conduction pipe.

3. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 2 is characterized in that: The interior of the heating tank (5) is provided with a stirring device (6), the stirring device (6) comprises a heating cylinder (603) fixed inside the heating tank (5), the bottom of the heating cylinder (603) is fixed to the bottom of the inner wall of the heating tank (5), and the heat conduction pipe is arranged between the heating cylinder (603) and the heating tank (5).

4. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 3 is characterized in that: A motor (602) is arranged on the top of the heating tank (5), a lifting cylinder (604) is arranged on the output shaft of the motor (602), a rotating rod (605) is arranged between the lifting cylinder (604) and the heating tank (5), and a plurality of stirring plates (601) are fixed on the rotating rod (605).

5. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 4 is characterized in that: A first gear (608) is fixed on the output shaft of the motor (602), a second gear (609) is fixed on the top of the rotating rod (605), and a third gear (607) meshing with each other is arranged between the first gear (608) and the second gear (609).

6. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 5 is characterized in that: A positioning rod is eccentrically fixed to one side of the third gear (607), and an annular groove matching the positioning rod is formed on the inner wall of the lifting cylinder (604).

7. The high-temperature flue gas scrubbing water heat recovery and utilization system according to claim 4 is characterized in that: Two scraping plates (606) are symmetrically fixed to the outer wall of the lifting cylinder (604), and the opposite ends of the two scraping plates (606) are in contact with the inner wall of the heat conducting pipe.

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