Caustic soda waste heat recovery device

Abstract

The utility model relates to the technical field of caustic soda, and discloses a caustic soda waste heat recovery device which comprises a recovery box, a controller is fixedly installed on the outer wall of the recovery box, a motor is fixedly installed on the outer wall of the recovery box, a driving wheel is fixedly assembled on a power output shaft of the motor, and a transmission belt is connected to the outer wall of the driving wheel in a rolling mode. According to the caustic soda waste heat recovery device, when gas flows to the inner wall of the box body through the inner wall of the exhaust pipe, harmful gas and peculiar smell in air are adsorbed through the activated carbon filter layer, the harmful gas in the air is effectively purified, a pull rod is pulled through external force, and a baffle is driven by the pull rod to abut against a spring, so that the spring is in a compressed state; the pull rod is released through external force, the pull rod pushes the baffle to abut against the outer wall of the activated carbon filter layer through the elastic force of the spring, and the activated carbon filter layer is stabilized on the inner wall of the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to caustic soda technical field, concretely is a caustic soda waste heat recovery device. BACKGROUND

[0002] Sodium hydroxide is commonly known as caustic soda, lye or caustic soda, which is a strong alkali with high corrosive property. It is usually white and flaky or granular, and can be dissolved in water to form an alkaline solution, and can also be dissolved in methanol and ethanol. Caustic soda has deliquescence, which can absorb water vapor in the air and also absorb acidic gases such as carbon dioxide. Caustic soda is one of the commonly used chemicals and is essential for many industrial processes. It is often used to make wood pulp paper, textiles, soap and other cleaning agents. There are two main production methods for caustic soda, including causticization and electrolysis. Causticization is to generate caustic soda by causticization reaction of pure alkali aqueous solution and lime milk; electrolysis is to generate caustic soda by electrolysis of saturated salt water solution, and by-product is chlorine and hydrogen. The electrolysis method for producing caustic soda is also called chlor-alkali industry.

[0003] The existing caustic soda waste heat recovery device produces a large amount of heat and gas during the production of caustic soda, so that when the equipment filters the hot gas flow, dust and impurities mixed in the gas flow will be attached to the filter screen, causing the filter screen to be easily blocked after a long time of use. At the same time, when the device recovers waste heat, the waste heat is discharged through the inner wall of the exhaust pipe, so that the waste heat recovery is not purified, thereby reducing the quality of the recovered flue gas. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a caustic soda waste heat recovery device, which has the advantages of filter screen improving cleaning efficiency and waste heat recovery achieving purification, solving the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: a caustic soda waste heat recovery device, comprising a recovery box, the outer wall of the recovery box is fixedly installed with a controller, the outer wall of the recovery box is fixedly installed with a motor, the power output shaft of the motor is fixedly assembled with a driving wheel, the outer wall of the driving wheel is rollingly connected with a transmission belt, the outer wall of the transmission belt is rollingly connected with a driven wheel, the outer wall of the driven wheel is fixedly installed with a lead screw, the outer wall of the lead screw is threadedly connected with a sliding block, the outer wall of the sliding block is fixedly installed with a brush plate, the outer wall of the recovery box is fixedly installed with an exhaust pipe, the outer wall of the exhaust pipe is fixedly connected with a box body, the outer wall of the box body is rotatably connected with a rotating rod, the inner wall of the rotating rod is provided with a pull rod, the outer wall of the pull rod is movably sleeved with a spring, the outer wall of the spring is fixedly installed with a baffle, the inner wall of the box body is placed with an activated carbon filter layer, and the inner wall of the recovery box is installed with a filter plate.

[0006] As a preferred technical scheme of the utility model: the controller and motor form electric connection, the number of lead screws is two, and the two lead screws are respectively located on the outer walls of driven wheels and driving wheels.

[0007] As a preferred technical scheme of the utility model: the number of brush plates is two, and the two brush plates are symmetrically arranged with the filter plate as the center.

[0008] As a preferred technical scheme of the utility model: the inner wall of the rotating rod and the outer wall of the pull rod form sliding connection, and the outer wall of the activated carbon filter layer is attached to the outer wall of the baffle.

[0009] As a preferred technical scheme of the utility model: one end of the spring is fixed to the outer wall of the baffle, and the other end of the spring is fixed to the outer wall of the rotating rod.

[0010] As a preferred technical scheme of the utility model: the top of the recycling box is fixedly provided with an air inlet pipe, and the inner wall of the recycling box and the outer wall of the filter plate form sliding connection.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、The caustic soda waste heat recovery device, when the gas in the inner wall of the exhaust pipe flows to the inner wall of the box, the activated carbon filter layer is used to adsorb harmful gases and odors in the air, effectively purifying harmful gases in the air, and the pull rod is pulled by external force, the pull rod drives the baffle to resist the spring, so that the spring is in a compressed state, the baffle is separated from the outer wall of the activated carbon filter layer, and the activated carbon filter layer is used for a long time, which is convenient for personnel replacement, the pull rod is released by external force, the pull rod pushes the baffle to resist the outer wall of the activated carbon filter layer through the elastic force of the spring, and the activated carbon filter layer is stable on the inner wall of the box.

[0013] 2、The caustic soda waste heat recovery device, by controlling the controller, the driving wheel is driven to rotate by the motor, the driving wheel drives the driven wheel to rotate through the transmission belt, so that the two lead screws drive the sliding block to slide on the inner wall of the recycling box, the two brush plates are symmetrically arranged with the filter plate as the center, so that the sliding block drives the two brush plates to move, and the top and bottom of the filter plate are fully cleaned, and the impurity cleaning efficiency of the inner wall of the filter plate is improved. ACCURACY

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a transmission belt structure schematic view of the utility model;

[0016] Figure 3 It is an activated carbon filter layer structure schematic view of the utility model;

[0017] Figure 4 It is the schematic diagram of the brush plate structure of the utility model.

[0018] Figure 5 It is the schematic diagram of the screw rod structure of the utility model.

[0019] In the figure: 1, recycling box; 2, controller; 3, driven wheel; 4, transmission belt; 5, driving wheel; 6, motor; 7, exhaust pipe; 8, box; 9, pull rod; 10, rotating rod; 11, baffle; 12, activated carbon filter layer; 13, spring; 14, filter plate; 15, screw rod; 16, brush plate; 17, sliding block; 18, air inlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figure 1 - Figure 5 A caustic soda waste heat recovery device, including recycling box 1, the outer wall of recycling box 1 is fixedly installed with controller 2, the outer wall of recycling box 1 is fixedly installed with motor 6, the power output shaft of motor 6 is fixedly assembled with driving wheel 5, the outer wall of driving wheel 5 is rollingly connected with transmission belt 4, the outer wall of transmission belt 4 is rollingly connected with driven wheel 3, the outer wall of driven wheel 3 is fixedly installed with screw rod 15, the outer wall of screw rod 15 is threadedly connected with sliding block 17, the outer wall of sliding block 17 is fixedly installed with brush plate 16, the outer wall of recycling box 1 is fixedly installed with exhaust pipe 7, the outer wall of exhaust pipe 7 is fixedly connected with box 8, the outer wall of box 8 is rotatably connected with rotating rod 10, the inner wall of rotating rod 10 is provided with pull rod 9, the outer wall of pull rod 9 movably sleeves spring 13, the outer wall of spring 13 is fixedly installed with baffle 11, the inner wall of box 8 is placed with activated carbon filter layer 12, the inner wall of recycling box 1 is installed with filter plate 14.

[0022] In the above structure, by installing filter plate 14, the impurities carried by caustic soda hot gas flow are filtered by filter plate 14, so that the waste heat is recovered through filter plate 14.

[0023] In a preferred embodiment: controller 2 and motor 6 form an electrical connection, the number of screw rod 15 is two, and the two screw rods 15 are located on the outer wall of driven wheel 3 and driving wheel 5 respectively.

[0024] In the structure, the controller 2 is operated to drive the motor 6 to rotate the driving wheel 5, the driving wheel 5 drives the driven wheel 3 to rotate through the transmission belt 4, and the two lead screws 15 drive the sliding blocks 17 to slide on the inner wall of the recycling box 1, so as to fully utilize the electric energy.

[0025] In a preferred embodiment, the number of brush plates 16 is two, and the two brush plates 16 are symmetrically arranged with the filter plate 14 as the center.

[0026] In the structure, the two brush plates 16 are symmetrically arranged with the filter plate 14 as the center, so that when the sliding blocks 17 drive the two brush plates 16 to move, the top and bottom of the filter plate 14 are fully cleaned, and the impurity cleaning efficiency of the inner wall of the filter plate 14 is improved.

[0027] In a preferred embodiment, the inner wall of the rotating rod 10 is in sliding connection with the outer wall of the pull rod 9, and the outer wall of the activated carbon filter layer 12 is in contact with the outer wall of the baffle 11.

[0028] In the structure, the outer wall of the activated carbon filter layer 12 is in contact with the outer wall of the baffle 11, the pull rod 9 is pushed by external force to slide on the inner wall of the rotating rod 10, and the outer wall of the activated carbon filter layer 12 is in contact with the baffle 11, so that the activated carbon filter layer 12 is stable on the inner wall of the box 8.

[0029] In a preferred embodiment, one end of the spring 13 is fixed to the outer wall of the baffle 11, and the other end of the spring 13 is fixed to the outer wall of the rotating rod 10.

[0030] In the structure, the pull rod 9 is pulled by external force, the baffle 11 is driven by the pull rod 9 to resist the spring 13, the spring 13 is in a compressed state, the baffle 11 is separated from the outer wall of the activated carbon filter layer 12, and the activated carbon filter layer 12 is used for a long time, which is convenient for personnel to replace. The pull rod 9 pushes the baffle 11 to resist the outer wall of the activated carbon filter layer 12 by the elastic force of the spring 13, so that the activated carbon filter layer 12 is stable on the inner wall of the box 8.

[0031] In a preferred embodiment, the top of the recycling box 1 is fixedly provided with an air inlet pipe 18, and the inner wall of the recycling box 1 is in sliding connection with the outer wall of the filter plate 14.

[0032] In the structure, the gas enters the inner wall of the recycling box 1 through the air inlet pipe 18, the impurities are filtered by the filter plate 14, and finally the gas is purified and discharged through the exhaust pipe 7. The filter plate 14 is pulled by external force to slide and separate on the inner wall of the recycling box 1, which is convenient for personnel to survey the filter plate 14.

[0033] Working principle: by operating the controller 2, the motor 6 is used to drive the driving wheel 5 to rotate, the driving wheel 5 drives the driven wheel 3 to rotate through the transmission belt 4, so that the two lead screws 15 drive the sliding block 17 to slide on the inner wall of the recycling box 1, the two brush plates 16 are symmetrically arranged with the filter plate 14 as the center, so that when the sliding block 17 drives the two brush plates 16 to move, the top and bottom of the filter plate 14 are cleaned comprehensively, thereby improving the impurity cleaning efficiency of the inner wall of the filter plate 14, when the gas passes through the inner wall of the exhaust pipe 7, the activated carbon filter layer 12 in the inner wall of the box body 8 is used to adsorb harmful gases and odors in the air, effectively purifying harmful gases in the air, the outer force pulls the pull rod 9, the pull rod 9 drives the baffle 11 to resist the spring 13, so that the spring 13 is in a compressed state, the baffle 11 is separated from the outer wall of the activated carbon filter layer 12, thereby enabling the activated carbon filter layer 12 to be used for a long time, facilitating personnel replacement, the outer force releases the pull rod 9, the pull rod 9 drives the baffle 11 to resist the outer wall of the activated carbon filter layer 12 through the elastic force of the spring 13, so that the activated carbon filter layer 12 is stable on the inner wall of the box body 8.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A caustic soda waste heat recovery device comprising a recovery tank (1), characterized in that: The outer wall of the recycling box (1) is fixedly installed with a controller (2), the outer wall of the recycling box (1) is fixedly installed with a motor (6), the power output shaft of the motor (6) is fixedly assembled with a driving wheel (5), the outer wall of the driving wheel (5) is rollingly connected with a transmission belt (4), the outer wall of the transmission belt (4) is rollingly connected with a driven wheel (3), the outer wall of the driven wheel (3) is fixedly installed with a lead screw (15), the outer wall of the lead screw (15) is threadedly connected with a sliding block (17), the outer wall of the sliding block (17) is fixedly installed with a brush plate (16), the outer wall of the recycling box (1) is fixedly installed with an exhaust pipe (7), the outer wall of the exhaust pipe (7) is fixedly connected with a box body (8), the outer wall of the box body (8) is rotatably connected with a rotating rod (10), the inner wall of the rotating rod (10) is provided with a pull rod (9), the outer wall of the pull rod (9) movably sleeves a spring (13), the outer wall of the spring (13) is fixedly installed with a baffle (11), the inner wall of the box body (8) is placed with an activated carbon filter layer (12), and the inner wall of the recycling box (1) is installed with a filter plate (14).

2. The caustic soda waste heat recovery device according to claim 1, characterized in that: The controller (2) and the motor (6) are electrically connected, the number of the lead screw (15) is two, and the two lead screws (15) are located on the outer walls of the driven wheel (3) and the driving wheel (5) respectively.

3. The caustic soda waste heat recovery device according to claim 2, characterized in that: The number of the brush plate (16) is two, and the two brush plates (16) are symmetrically arranged with the filter plate (14) as the center.

4. The caustic soda waste heat recovery device according to claim 1, characterized in that: The inner wall of the rotating rod (10) and the outer wall of the pull rod (9) are slidably connected, and the outer wall of the activated carbon filter layer (12) is attached to the outer wall of the baffle (11).

5. The caustic soda waste heat recovery device according to claim 4, characterized in that: One end of the spring (13) is fixed to the outer wall of the baffle (11), and the other end of the spring (13) is fixed to the outer wall of the rotating rod (10).

6. The caustic soda waste heat recovery device according to claim 1, characterized in that: The top of the recycling box (1) is fixedly installed with an air inlet pipe (18), and the inner wall of the recycling box (1) is slidably connected with the outer wall of the filter plate (14).

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