CN209945046U - Residual heat recycling device for perlite kiln - Google Patents

Abstract

The utility model relates to a perlite kiln waste heat recycle device, including high temperature flue gas pipeline, heat transfer case, filter, gas vent and drying cabinet, high temperature flue gas pipeline is used for connecting heat transfer case and kiln, heat transfer case and gas outlet and two heat transfer casees, the heat transfer case includes once heat transfer case and secondary heat transfer case, and the heat transfer case comprises a set of heat exchange tube, be provided with the drainage fan between once heat transfer case and the secondary heat transfer case, the exhanst gas outlet department at the secondary heat transfer case is connected to the filter, is provided with the active carbon adsorption net in the filter, the filter tail end is connected to the gas vent, the drying cabinet sets up in heat transfer case top. The utility model discloses a heat transfer is carried out to once heat transfer case and secondary heat transfer case, make full use of the heat in the different stages of flue gas, and heat exchange efficiency is higher.

Description

Residual heat recycling device for perlite kiln

Technical Field

The utility model relates to a kiln production facility field, concretely relates to residual heat recycling device of perlite kiln.

Background

Perlite is acid lava sprayed by volcanoes, vitreous rock formed by rapid cooling is named because of having a pearl crack structure, perlite ore comprises perlite, obsidian and pitchstone, perlite raw sand is subjected to fine crushing and ultrafine crushing, and can be used as fillers in rubber and plastic products, pigments, paints, printing ink, synthetic glass, heat insulation bakelite and some mechanical components and equipment.

At present, the general waste heat recycling device of the perlite kiln has lower efficiency of recycling the heat of the flue gas and cannot achieve better effect of reducing the energy consumption of the kiln.

Disclosure of Invention

The utility model aims at providing a perlite kiln residual heat recycling device which is higher in flue gas heat recycling efficiency and can carry out pretreatment before tail gas emission for solving the problem that the efficiency of the general perlite kiln residual heat recycling device for recycling flue gas heat is lower.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a perlite kiln waste heat recycle device, includes high temperature flue gas pipeline, heat transfer case, filter, gas vent and drying cabinet, high temperature flue gas pipeline through connection perlite kiln, heat transfer case and filter, the heat transfer case includes once heat transfer case and secondary heat transfer case, and the heat transfer case comprises the heat exchange tube, the heat exchange tube all vertically sets up, the filter is connected to the gas outlet department of secondary heat transfer case, the inside active carbon absorption net that sets up of filter, gas vent and filter end-to-end connection, heat transfer case top is provided with the drying cabinet.

Furthermore, the air inlets of the primary heat exchange box and the secondary heat exchange box are both in a right-angle trapezoid shape.

Furthermore, a drainage fan is arranged on a high-temperature flue gas pipeline connecting the secondary heat exchange box and the primary heat exchange box, and an air outlet of the drainage fan faces upwards.

Furthermore, the heat exchange tube is a finned heat exchange tube, a heat exchange tube fin is arranged on one side, facing the flue gas, of the heat exchange tube, and the length of the heat exchange tube fin is gradually reduced from top to bottom along the longitudinal direction of the heat exchange tube.

Further, a water pump is arranged between the heat exchange box and the drying box, the heat exchange box, the drying box and the water pump are sequentially connected through a connecting water pipe, a first valve and a second valve are arranged on the connecting water pipes on the front side and the rear side of the drying box, and a third valve is arranged on the connecting water pipe above the heat exchange box.

Furthermore, all be provided with temperature sensor on the heat transfer case.

Further, be provided with the drying plate in the drying cabinet, the middle part of drying plate top surface is equidistant sets up a plurality of lift posts.

Further, the filter is trumpet-shaped.

Through the technical scheme, the beneficial effects of the utility model are that:

the utility model adopts the mode of combining the primary heat exchange box and the secondary heat exchange box to fully utilize the heat of the flue gas in different stages; the heat exchange tubes are arranged in a longitudinal mode, so that the flue gas uniformly heats water in the heat exchange tubes, and the heat exchange efficiency is high; the filter can be arranged to pretreat the exhausted tail gas; the drying box can be used for directly placing the substances to be dried in the drying box, and is convenient to use.

The air inlets of the primary heat exchange box and the secondary heat exchange box are both in a right-angled trapezoid shape, so that the diameter of the air inlet of the heat exchange box is larger than that of the high-temperature flue gas pipeline, and flue gas enters the heat exchange box more uniformly; the flow guide fan can increase the flow velocity of the flue gas entering the secondary heat exchange box, and the influence of the reduction of the flow velocity on the heat exchange effect after the flue gas is transmitted for a certain distance is prevented; the lengths of the fins of the heat exchange tube are sequentially decreased from top to bottom along the longitudinal direction of the heat exchange tube, so that the turbulent flow effect on the flue gas is enhanced, and the heat exchange efficiency is improved; the drying plate is provided with the lifting column, and the dried substances can be supported when the lifting column is lifted, so that the drying plate is convenient to take out.

Drawings

Fig. 1 is a schematic structural diagram of the waste heat recycling device of the perlite kiln.

Fig. 2 is a schematic view of the overlooking structure of the drying plate of the waste heat recycling device of the perlite kiln.

The reference numbers in the drawings are as follows: the perlite heat exchanger comprises a perlite kiln 1, a kiln flue gas outlet 2, a high-temperature flue gas pipeline 3, a primary heat exchange box 4, a secondary heat exchange box 5, a heat exchange tube 6, a heat exchange tube fin 7, a drainage fan 8, a filter 9, an activated carbon adsorption net 10, an exhaust port 11, a drying box 12, a drying plate 13, a lifting column 14, a connecting water pipe 15, a water pump 16, a first valve 17, a second valve 18, a third valve 19 and a temperature sensor 20.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in figures 1-2, the waste heat recycling device for the perlite kiln comprises a high-temperature flue gas pipeline 3, a heat exchange box, a filter 9, an exhaust port 11 and a drying box.

High temperature flue gas pipeline 3 is used for connecting 1 and heat transfer case, heat transfer case and gas vent 11, two heat transfer cases of pearlite kiln, first section kiln gas outlet 2, the other end connection heat transfer case 4 are connected to 3 one end of high temperature flue gas pipeline, the second section heat transfer case 5 is connected to 3 one end connection heat transfer case 4, the other end of high temperature flue gas pipeline, the third section secondary heat transfer case 5 is connected to 3 one end of high temperature flue gas pipeline, the filter 9 is connected to the other end, the fourth section filter 9, other end connection exhaust port 11 are connected to 3 one end of high temperature flue gas pipeline.

The heat exchange box comprises a primary heat exchange box 4 and a secondary heat exchange box 5, the heat exchange boxes are respectively composed of heat exchange tubes 6, the heat exchange tube 6 is longitudinally arranged, the heat exchange tube 6 is a finned heat exchange tube, a heat exchange tube fin 7 is arranged on one side of the heat exchange tube 6 facing the flue gas, the length of the heat exchange tube fin 7 is gradually reduced from top to bottom along the longitudinal direction of the heat exchange tube 6, a water outlet of the heat exchange tube 6 is provided with a temperature sensor 20, the model of the temperature sensor in the embodiment is a 0085 tube clamp type temperature sensor produced by Rosemont corporation, the air inlets of the primary heat exchange box 4 and the secondary heat exchange box 5 are both in a right-angled trapezoid shape, a drainage fan 8 is arranged on the high-temperature flue gas pipeline 3 connecting the primary heat exchange box 4 and the secondary heat exchange box 5, the air outlet of the drainage fan 8 faces upwards, and the type of the drainage fan in the embodiment is TB-100-2 produced by Shanghai full wind industry.

The filter 9 is trumpet-shaped, and a plurality of active carbon adsorption nets 10 are arranged inside the filter 9, and the active carbon adsorption nets 10 can be replaced after being used for a period of time.

The exhaust port 11 is opened to the outside, and a top cover keeping a certain distance from the exhaust port 11 is arranged at the top end of the exhaust port 11.

The drying box 12 is arranged above the heat exchange box, the water pump 16 is arranged between the heat exchange box and the drying box 12, the heat exchange box, the drying box 12 and the water pump 16 are sequentially connected through the connecting water pipe 15, the first valve 17 and the second valve 18 are arranged on the connecting water pipe 15 on the front side and the rear side of the drying box 12, the third valve 19 is arranged on the connecting water pipe 15 above the heat exchange box, the drying plate 13 is arranged in the drying box 12, the lifting columns 14 are arranged in the middle of the top surface of the drying plate 13 at equal intervals, and the water pump 16 in the embodiment is 32ZW10-20 produced by Shanghai special pump valve manufacturing Limited.

When the device is used, the third valves 19 on the primary heat exchange box 4 and the secondary heat exchange box 5 are firstly opened, cold water enters the heat exchange tubes 6 of the primary heat exchange box 4 and the secondary heat exchange box 5, the third valves 19 are closed after the heat exchange tubes 6 are filled with water, smoke of the perlite kiln 1 enters the high-temperature smoke pipeline 3 through the kiln smoke outlet 2, the smoke in the high-temperature smoke pipeline 3 firstly enters the primary heat exchange box 4 for primary heat exchange, when the temperature sensor 20 in the primary heat exchange box 4 detects that the temperature of the water reaches 90 ℃ preset temperature, the water pump 16 is started, the first valve 17 on the primary heat exchange box 4 is opened at the same time, when hot water is filled with the drying plate 13, the first valve 17 on the primary heat exchange box 4 is closed, the water pump 16 is stopped at the same time, the third valves 19 are opened after the water pump 16 is stopped, cold water enters the heat exchange tubes 6 to be filled with the cold water, and the, when the water in the primary heat exchange box 4 reaches the preset temperature of 90 ℃ again, the first valve 17 and the second valve 18 are opened, the water pump 16 is started at the same time, when new hot water is filled in the drying plate 13 again, the first valve 17 and the second valve 18 are closed, the water pump 16 is stopped at the same time, the flue gas after primary heat exchange enters the secondary heat exchange box 5, when the temperature sensor 20 in the secondary heat exchange box 5 detects that the water temperature therein reaches the preset temperature of 60 ℃, the action sequence of the water pump 16, the first valve 17, the second valve 18 and the third valve 19 above the secondary heat exchange box 5 is consistent with the action sequence when the water temperature in the primary heat exchange box 4 reaches the preset temperature of 90 ℃, the flue gas after secondary heat exchange enters the filter 9, and finally the flue gas passing through the filter 9 is discharged to the outside through the exhaust port 11.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims (8)

1. The utility model provides a perlite kiln waste heat recycle device, includes high temperature flue gas pipeline (3), heat transfer case and gas vent (11), its characterized in that still includes filter (9) and drying cabinet (12), high temperature flue gas pipeline (3) through connection perlite kiln (1), heat transfer case and filter (9), the heat transfer case includes once heat transfer case (4) and secondary heat transfer case (5), and the heat transfer case comprises heat exchange tube (6), heat exchange tube (6) all vertically set up, filter (9) are connected to the gas outlet department of secondary heat transfer case (5), filter (9) inside sets up activated carbon adsorption net (10), gas vent (11) and filter (9) end-to-end connection, heat transfer case top is provided with drying cabinet (12).

2. The waste heat recycling device for the perlite kiln as recited in claim 1, characterized in that the air inlets of the primary heat exchange box (4) and the secondary heat exchange box (5) are both in the shape of right trapezoid.

3. The waste heat recycling device for the perlite kiln as defined in claim 1, wherein a flow guiding fan (8) is arranged on the high temperature flue gas pipeline (3) connecting the secondary heat exchange box (5) and the primary heat exchange box (4), and the air outlet of the flow guiding fan (8) faces upwards.

4. The waste heat recycling device for the perlite kiln as recited in claim 1, wherein the heat exchange tube (6) is a finned heat exchange tube, one side of the heat exchange tube (6) facing the flue gas is provided with heat exchange tube fins (7), and the lengths of the heat exchange tube fins (7) are gradually decreased from top to bottom along the longitudinal direction of the heat exchange tube (6).

5. The waste heat recycling device for the perlite kiln as defined in claim 1, wherein a water pump (16) is arranged between the heat exchange box and the drying box (12), a connecting water pipe (15) connects the heat exchange box, the drying box (12) and the water pump (16) in sequence, a first valve (17) and a second valve (18) are arranged on the connecting water pipe (15) at the front side and the rear side of the drying box (12), and a third valve (19) is arranged on the connecting water pipe (15) above the heat exchange box.

6. The waste heat recycling device for the perlite kiln as recited in claim 1, characterized in that the heat exchange boxes are all provided with a temperature sensor (20).

7. The waste heat recycling device for the perlite kiln as defined in claim 1, wherein a drying plate (13) is disposed in the drying box (12), and a plurality of lifting columns (14) are disposed in the middle of the top surface of the drying plate (13) at equal intervals.

8. The waste heat recycling device for the perlite kiln as recited in claim 1, characterized in that the filter (9) is trumpet-shaped.

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