CN215491250U

CN215491250U - Waste heat recovery device is used in magnesium hydrate preparation

Info

Publication number: CN215491250U
Application number: CN202121577660.8U
Authority: CN
Inventors: 徐振红
Original assignee: Henan Ruilong New Material Technology Co ltd
Current assignee: Henan Ruilong New Material Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-01-11
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a waste heat recovery device for preparing magnesium hydroxide. Waste heat recovery device for magnesium hydroxide preparation includes magnesium hydroxide reation kettle, waste water outlet and exhaust-gas outlet have on the magnesium hydroxide reation kettle, waste water outlet passes through the input of the fixed intercommunication water pump of drain pipe, water pump fixed mounting is in magnesium hydroxide reation kettle peripheral part, the output of water pump passes through pipeline and waste hot water recovery heat exchanger intercommunication, the input of the fixed intercommunication air pump of exhaust tube is passed through to the exhaust-gas outlet, air pump fixed mounting is in magnesium hydroxide reation kettle's peripheral part, the output of air pump passes through the fixed intercommunication flue gas recovery heat exchanger of pipeline. The utility model adopts the mode of combining the waste hot water recovery heat exchanger and the flue gas recovery heat exchanger for use, and can treat waste hot water and waste hot gas in the magnesium hydroxide reaction kettle.

Description

Waste heat recovery device is used in magnesium hydrate preparation

Technical Field

The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery device for preparing magnesium hydroxide.

Background

Magnesium hydroxide is an excellent flame retardant for plastic and rubber products. The sulfur dioxide can be used as a flue gas desulfurizer in the aspect of environmental protection and can replace caustic soda and lime to be used as a neutralizer for acid-containing wastewater. It is also used as oil additive to prevent corrosion and remove sulfur. In addition, the method can also be used for refining granulated sugar, serving as a heat preservation material and manufacturing other magnesium salt products in the electronic industry and the medicine. The magnesium hydroxide has excellent buffering performance, reaction activity, adsorbability, thermal decomposition performance and the like, can be used as a chemical material and an intermediate, and is a green environment-friendly flame retardant and an additive used in the industries of high polymer materials such as rubber, plastics, fibers, resin and the like.

Magnesium hydrate can release a large amount of heats in the preparation process, and gas and water in these heats can be to reation kettle, and the waste heat recovery device who uses on magnesium hydrate reation kettle among the prior art adopts a waste heat recovery equipment more, causes the waste heat to obtain the utilization of maximize.

Therefore, it is necessary to provide a new waste heat recovery device for magnesium hydroxide preparation to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the waste heat recovery device for preparing magnesium hydroxide, which can utilize waste heat in waste hot water and waste hot gas in a magnesium hydroxide reaction kettle to the maximum extent and achieve the effect of maximizing the utilization of the waste heat in the magnesium hydroxide reaction kettle.

The waste heat recovery device for preparing the magnesium hydroxide comprises a magnesium hydroxide reaction kettle, wherein a waste water outlet and a waste gas outlet are formed in the magnesium hydroxide reaction kettle, the waste water outlet is fixedly communicated with the input end of a water pump through a drain pipe, the water pump is fixedly arranged on the periphery of the magnesium hydroxide reaction kettle, and the output end of the water pump is communicated with a waste hot water recovery heat exchanger through a pipeline;

preferably, the waste gas outlet is fixedly communicated with an input end of an air pump through an exhaust tube, the air pump is fixedly installed on the peripheral part of the magnesium hydroxide reaction kettle, and an output end of the air pump is fixedly communicated with the flue gas recovery heat exchanger through a pipeline.

Preferably, the output end of the water pump is fixedly communicated with a water inlet of the water quality filter through a water inlet pipe, and a water outlet of the water quality filter is fixedly communicated with a water inlet end of the waste hot water recovery heat exchanger through a water delivery pipe.

Preferably, the output end of the air pump is fixedly communicated with the lower part of the inner cavity of the purifying box through an air inlet pipe, and the upper part of the inner cavity of the purifying box is fixedly communicated with an air inlet of the flue gas recovery heat exchanger through an air outlet pipe.

Preferably, the bottom surface fixed mounting has the barrel in the purifying box, the inner wall lower fixed mounting of barrel has the support ring, and a plurality of holding dish have been piled up in proper order from bottom to top to the upper surface of support ring, and all pack in every holding dish and have right amount of active carbon granule.

Preferably, the top of the containing disc is open, the bottom of the containing disc is provided with a plurality of uniform air holes, the inner bottom surface of the containing disc is covered with a layer of gauze, quartz sand grains are prevented from falling from the air holes, water can seep into the containing disc on the lower layer through the air holes, the purification effect of the containing disc is achieved layer by layer, meanwhile, a plurality of uniformly distributed positioning shafts are fixedly mounted on the periphery of the top of the containing disc, and positioning holes which are the same in number as the positioning shafts and are uniformly distributed are formed in the periphery of the bottom of the containing disc.

Compared with the related art, the waste heat recovery device for preparing magnesium hydroxide provided by the utility model has the following beneficial effects:

the utility model provides a waste heat recovery device for preparing magnesium hydroxide, which adopts a mode of combining a waste hot water recovery heat exchanger and a flue gas recovery heat exchanger for use, can utilize waste hot water and waste heat in waste hot gas in a magnesium hydroxide reaction kettle to the maximum extent, and achieves the effect of utilizing the waste heat in the magnesium hydroxide reaction kettle to the maximum extent.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of a waste heat recovery device for preparing magnesium hydroxide according to the present invention;

FIG. 2 is a schematic view showing the inside structure of the purification tank of the present invention;

fig. 3 is a schematic structural view of a tray according to the present invention.

Reference numbers in the figures: 1. a magnesium hydroxide reaction kettle; 2. a waste hot water recovery heat exchanger; 3. a flue gas recovery heat exchanger; 4. a purification box; 5. a water quality filter; 6. a water supply pipe; 7. a water inlet pipe; 8. a water pump; 9. an air exhaust pipe; 10. a drain pipe; 11. an air inlet pipe; 12. an air outlet pipe; 13. an air pump; 14. a barrel; 15. a holding tray; 16. a support ring; 17. gauze; 18. positioning the shaft; 19. and (4) air holes.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a waste heat recovery device for preparing magnesium hydroxide according to a preferred embodiment of the present invention; FIG. 2 is a schematic view showing the inside structure of the purification tank of the present invention; fig. 3 is a schematic structural view of a tray according to the present invention. The method comprises the following steps: magnesium hydrate reation kettle 1, useless hot water recovery heat exchanger 2, flue gas recovery heat exchanger 3, purifying box 4, water quality filter 5, flow pipe 6, inlet tube 7, water pump 8, exhaust tube 9, drain pipe 10, intake pipe 11, outlet duct 12, air pump 13, barrel 14, splendid attire dish 15, support ring 16, gauze 17, location axle 18 and gas pocket 19.

In a specific implementation process, please refer to fig. 1, a waste water outlet and a waste gas outlet are arranged on the magnesium hydroxide reaction kettle 1, the waste water outlet is fixedly communicated with an input end of a water pump 8 through a drain pipe 10, the water pump 8 is fixedly installed on the periphery of the magnesium hydroxide reaction kettle 1, and an output end of the water pump 8 is communicated with the waste hot water recovery heat exchanger 2 through a pipeline;

the waste gas outlet is fixedly communicated with the input end of an air pump 13 through an air exhaust pipe 9, the air pump 13 is fixedly installed on the peripheral part of the magnesium hydroxide reaction kettle 1, and the output end of the air pump 13 is fixedly communicated with the flue gas recovery heat exchanger 3 through a pipeline.

Its aim at, this application adopts the mode that waste hot water recovery heat exchanger 2 used with 3 combinations of flue gas recovery heat exchanger, can carry out furthest's utilization to waste heat in waste hot water and the waste heat gas among the magnesium hydrate reation kettle 1, reaches the utilization effect to waste heat maximize among the magnesium hydrate reation kettle 1.

Referring to fig. 1, an output end of the water pump 8 is fixedly communicated with a water inlet of the water filter 5 through a water inlet pipe 7, and a water outlet of the water filter 5 is fixedly communicated with a water inlet end of the waste hot water recovery heat exchanger 2 through a water supply pipe 6.

The purpose is that the water quality filter 5 can filter the waste hot water and then recover the waste heat for subsequent discharge.

Referring to fig. 1, an output end of the air pump 13 is fixedly communicated with a lower portion of an inner cavity of the purifying box 4 through an air inlet pipe 11, and an upper portion of the inner cavity of the purifying box 4 is fixedly communicated with an air inlet of the flue gas recovery heat exchanger 3 through an air outlet pipe 12.

Referring to fig. 2 and 3, a cylinder 14 is fixedly mounted on the inner bottom surface of the purification box 4, a support ring 16 is fixedly mounted on the lower surface of the inner wall of the cylinder 14, a plurality of containing trays 15 are sequentially stacked on the upper surface of the support ring 16 from bottom to top, and each containing tray 15 is filled with a proper amount of activated carbon particles.

The method aims to purify waste hot gas by utilizing the adsorption effect of the activated carbon particles.

Referring to fig. 2 and 3, the top of the containing tray 15 is open, the bottom of the containing tray is provided with a plurality of uniform air holes 19, the inner bottom surface of the containing tray 15 is covered with a layer of gauze 17, so that quartz sand grains are prevented from falling from the air holes 19, the air holes 19 can enable water to seep into the lower containing tray 15 to achieve a layer-by-layer purification effect, meanwhile, the circumferential surface of the top of the containing tray 15 is fixedly provided with a plurality of positioning shafts 18 which are uniformly distributed, and the circumferential surface of the bottom of the containing tray 15 is provided with positioning holes which are the same in number as the positioning shafts 18 and are uniformly distributed.

Its aim at, can be layer by layer take out splendid attire dish 15 from the top of purifying box 4, reach the effect of being convenient for change the active carbon granule.

The working principle provided by the utility model is as follows: this application adopts waste hot water recovery heat exchanger 2 and the mode of 3 combined use of flue gas recovery heat exchanger, can carry out furthest's utilization to waste heat in waste hot water and the waste heat gas among magnesium hydrate reation kettle 1, reaches the utilization effect to waste heat maximize among the magnesium hydrate reation kettle 1.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The waste heat recovery device for preparing the magnesium hydroxide comprises a magnesium hydroxide reaction kettle (1), wherein a waste water outlet and a waste gas outlet are formed in the magnesium hydroxide reaction kettle (1), and is characterized in that the waste water outlet is fixedly communicated with an input end of a water pump (8) through a drain pipe (10), the water pump (8) is fixedly arranged on the periphery of the magnesium hydroxide reaction kettle (1), and an output end of the water pump (8) is communicated with a waste hot water recovery heat exchanger (2) through a pipeline;

the waste gas outlet is fixedly communicated with the input end of an air pump (13) through an air exhaust pipe (9), the air pump (13) is fixedly installed on the peripheral part of the magnesium hydroxide reaction kettle (1), and the output end of the air pump (13) is fixedly communicated with the flue gas recovery heat exchanger (3) through a pipeline.

2. The waste heat recovery device for magnesium hydroxide preparation according to claim 1, wherein the output end of the water pump (8) is fixedly communicated with the water inlet of the water filter (5) through a water inlet pipe (7), and the water outlet of the water filter (5) is fixedly communicated with the water inlet end of the waste hot water recovery heat exchanger (2) through a water delivery pipe (6).

3. The waste heat recovery device for magnesium hydroxide preparation according to claim 1, wherein the output end of the air pump (13) is fixedly communicated with the lower part of the inner cavity of the purification box (4) through an air inlet pipe (11), and the upper part of the inner cavity of the purification box (4) is fixedly communicated with the air inlet of the flue gas recovery heat exchanger (3) through an air outlet pipe (12).

4. The waste heat recovery device for preparing magnesium hydroxide according to claim 3, wherein a cylinder (14) is fixedly installed on the inner bottom surface of the purification box (4), a support ring (16) is fixedly installed on the lower surface of the inner wall of the cylinder (14), a plurality of containing discs (15) are sequentially stacked on the upper surface of the support ring (16) from bottom to top, and a proper amount of activated carbon particles are filled in each containing disc (15).

5. The waste heat recovery device for preparing magnesium hydroxide according to claim 4, wherein the top of the containing tray (15) is open, and the bottom of the containing tray is provided with a plurality of uniform air holes (19), and the inner bottom surface of the containing tray (15) is covered with a layer of gauze (17) to prevent quartz sand from falling from the air holes (19), and the air holes (19) can allow water to permeate into the lower layer of containing tray (15) to realize the purification effect layer by layer, and meanwhile, the peripheral surface of the top of the containing tray (15) is fixedly provided with a plurality of positioning shafts (18) which are uniformly arranged, and the peripheral surface of the bottom of the containing tray (15) is provided with positioning holes which are the same in number as the positioning shafts (18) and are uniformly arranged.