Waste heat recovery device based on hot blast stove

Abstract

The utility model discloses a waste heat recovery device based on a hot blast stove, and relates to the technical field of hot blast stoves. The top of the furnace body is connected with a smoke exhaust pipe through a hose, the other end of the furnace body is provided with a supporting frame, the top of the supporting frame is fixedly provided with a purification box, the surfaces of the two sides of the purification box are fixedly connected with first flange plates, and the outer side of each first flange plate is provided with a second flange plate through a bolt. The purification box and the fan can be separately fixed with the furnace body by arranging the supporting frame, the possibility that the smoke exhaust pipe and the recovery pipe vibrate along with the furnace body is reduced by arranging the hose and the corrugated pipe, and the baffle can be driven to extrude and limit the second flange plate through mutual matching between the adjusting component and the connecting block, so that the purification effect is improved. And the possibility of separation between the second flange plate and the first flange plate is reduced, so that the possibility of leakage of recovered gas is reduced, and the effect of recovering the waste heat of the waste gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -blast stove technical field, concretely relates to a kind of waste heat recovery device based on hot -blast stove. BACKGROUND

[0002] Hot -blast stove is a thermal power machinery, it generates heat by fuel combustion, and these heat is transferred in the form of hot blast, for heating or drying process, such as hot -blast stove is widely used in many industries, including for the preparation and drying of chemicals, chemical products and drugs, also can be used for the baking finish, powder spraying, solidification of automobile, motorcycle, container, household appliance and other industrial products, and for wood drying, artificial board, laminated board, gypsum board, glass fiber product drying.

[0003] Hot -blast stove is important component device in grain dryer, it is convenient to provide stable hot blast to dry grain, currently hot -blast stove is used, exhaust port is provided at top, for discharging impurity-containing waste gas, but these discharged waste gas is hot air, since the existing hot -blast stove lacks effective waste heat recovery device, causing waste of waste heat, reduce the energy utilization efficiency.

[0004] The prior art discloses a waste heat recovery device of hot -blast stove for grain dryer, which comprises a hot -blast stove body and an exhaust port, a suction fan is installed on the upper surface of the hot -blast stove body, suction pipes and exhaust pipes are respectively sleeved with the left and right ends of the suction fan, and one end of the suction pipe is sleeved with the exhaust port, a waste heat recovery assembly is arranged on one side of the outer portion of the hot -blast stove body, and one end of the exhaust pipe is sleeved with one side of the outer portion of the waste heat recovery assembly, by starting the suction fan, the hot waste gas absorbed by the suction pipe is discharged to the heat preservation sleeve in the waste heat recovery assembly through the exhaust pipe, so that the heat preservation sleeve can be continuously filled with hot waste gas during the operation of the hot -blast stove body, the temperature in the heat preservation sleeve is increased, so that the heat can be transferred to the inside of the heating chamber, and the inside of the heating chamber can dry the grain with low water content. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of waste heat recovery device based on hot -blast stove to solve the problems in the above background.

[0006] The utility model provides to adopt the technical scheme that

[0007] A waste heat recovery device based on hot blast furnace, including the furnace body, the top of furnace body is connected with the smoke pipe through the hose, the other end of furnace body is provided with the support frame, the top of support frame is fixedly installed with the purification box, the both side surfaces of purification box are fixedly connected with the first flange plate, the outside of each first flange plate is fixedly installed with the second flange plate through bolt, the side of the second flange plate of one side of purification box is fixedly installed with the fan, the bottom surface of fan is fixedly connected with the top of support frame, the bottom of smoke pipe of one end of furnace body is fixedly connected with the top surface of fan, the both end surfaces of each first flange plate are fixedly installed with the mounting plate, the inside of each mounting plate is slidably connected with the connecting block, the outside surface of each connecting block extends out of the inside of each mounting plate and is fixedly installed with the baffle, each baffle is pressed with the outside surface of each second flange plate respectively, the outside of each mounting plate is provided with the adjusting component for adjusting the movement of connecting block, the other side of the second flange plate of the other side of purification box is fixedly installed with the recovery pipe, the recovery pipe is fixedly connected with the other side surface of furnace body through the bellows, the inside of support frame is fixedly installed with the controller.

[0008] The hot blast furnace may shake during work, which may affect the stability of the connecting pipe for waste heat recovery of the exhaust gas. After a long time of vibration, the position of the pipe connection may be loose, which may cause gas leakage and affect the waste heat recovery effect. In the present application, the purification box and the fan are fixed on the top of the support frame, and the support frame is placed on the ground, so that the purification box and the fan are separated from the furnace body. The purification box and the fan can be supported and fixed, reducing the possibility of being affected by the vibration of the furnace body. The hose and the bellows are arranged to flexibly connect the smoke pipe and the recovery pipe with the furnace body, respectively, reducing the possibility of the smoke pipe and the recovery pipe following the vibration of the furnace body. The adjusting component is arranged to adjust the position of the connecting block in the mounting plate, so that the baffle can press the surface of the second flange plate, reinforcing the second flange plate and the first flange plate, and reducing the possibility of the purification box and the second flange plate being loose and separated, improving the waste heat recovery effect of the exhaust gas.

[0009] The further improvement of the technical scheme of the utility model lies in that each adjusting component comprises a fixing frame, each fixing frame is fixedly connected with the outside surface of each mounting plate, a screw rod is screwedly installed in the inside of each fixing frame, a push block is rotatably connected to the inside end surface of each screw rod through a bearing, each push block extends into the inside of each mounting plate and the connecting block, an inclined surface inclined towards the inside of the outside end is formed in the inside end surface of each push block, and each inclined surface is pressed with the inner wall of each connecting block.

[0010] The technical scheme is characterized in that the screw is rotated to drive the push block to move in the installation plate, and the inclined surface of the push block can extrude the connecting block to move towards the inside of the installation plate, thereby driving the baffle to extrude the surface of the second flange plate to limit and reinforce the second flange plate.

[0011] The further improvement of the technical scheme of the utility model lies in that each screw outer end surface respectively extends out of the inside of each fixed frame and is fixedly installed with a hand wheel.

[0012] The technical scheme is characterized in that the hand wheel is installed to expand the contact area between the hand of an operator and the screw, so as to facilitate the rotation operation of the screw.

[0013] The further improvement of the technical scheme of the utility model lies in that the installation plate outer side surface of each connecting block is provided with an inclined groove.

[0014] The technical scheme is characterized in that the inclined groove is provided to increase the opening size of the installation plate outer side surface, so as to facilitate the insertion of the connecting block into the inside of the installation plate and facilitate the operation of an operator.

[0015] The further improvement of the technical scheme of the utility model lies in that one end surface of the support frame is fixedly installed with a fixed rod, and the top of the fixed rod is fixedly connected with a fixed ring, and the fixed ring is fixedly connected with the outer surface of the smoke exhaust pipe.

[0016] The technical scheme is characterized in that the fixed rod and the fixed ring are installed to connect the smoke exhaust pipe with the support frame, reinforce the smoke exhaust pipe, reduce the possibility of vibration of the smoke exhaust pipe, and further improve the effect of waste heat recovery of the furnace body.

[0017] The further improvement of the technical scheme of the utility model lies in that the bottom of each first flange plate is fixedly installed with a support plate, and the top surface of each support plate is respectively attached to the bottom surface of each second flange plate.

[0018] The technical scheme is characterized in that the support plate is installed to support the second flange plate from the bottom, reduce the possibility of sliding of the second flange plate towards the bottom, and further improve the limiting effect of the second flange plate.

[0019] The further improvement of the technical scheme of the utility model lies in that the bottom surface of the support frame is attached with a plurality of anti-skid strips.

[0020] The technical scheme is characterized in that the anti-skid strips are arranged to increase the friction between the bottom surface of the support frame and the ground, thereby improving the stability of the support frame.

[0021] Due to the adoption of the above technical scheme, the present application has the following technical progress compared with the prior art:

[0022] 1. The waste heat recovery device based on a hot blast furnace, by fixing the purification tank and the fan on the top of the support frame and placing the support frame on the ground, the purification tank and the fan can be arranged separately from the furnace body, supporting and fixing the purification tank and the fan, thereby reducing the possibility of the purification tank and the fan being affected by the vibration of the furnace body, and the exhaust pipe and the recovery pipe are flexibly connected to the furnace body by the hose and the bellows respectively, thereby reducing the possibility of the exhaust pipe and the recovery pipe following the vibration of the furnace body.

[0023] 2. The waste heat recovery device based on a hot blast furnace, by adjusting the mutual cooperation between the components, the push block can be moved in the installation plate and pressed against the connecting block by rotating the screw rod, so that the connecting block moves towards the inside of the installation plate, and the baffle can be pressed against the surface of the second flange plate, thereby reinforcing the second flange plate and the first flange plate, reducing the possibility of the purification tank and the second flange plate being loose and separated, and improving the effect of waste heat recovery.

[0024] 3. The waste heat recovery device based on a hot blast furnace, by setting the fixing rod and the fixing ring, the exhaust pipe can be reinforced, reducing the possibility of vibration of the exhaust pipe, thereby further improving the effect of waste heat recovery of the furnace body. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a perspective view of the present application;

[0027] Figure 2 is a perspective view of the overall second angle of the present application;

[0028] Figure 3 is a perspective view of the present application; Figure 2 is an enlarged structure schematic view of the middle A;

[0029] Figure 4 is a partial structure schematic view of the installation plate of the present application;

[0030] Figure 5 is a partial structure schematic view of the installation plate of the present application;

[0031] Figure 6 is a partial structure schematic view of the connecting block of the present application.

[0032] In the figure: 1, furnace body; 2, support frame; 3, purification box; 4, controller; 5, adjusting part; 501, fixing frame; 502, push block; 503, screw rod; 504, hand wheel; 6, fan; 7, mounting plate; 8, baffle; 9, hose; 10, first flange plate; 11, recovery pipe; 12, anti-skid strip; 13, fixing ring; 14, fixing rod; 15, second flange plate; 16, connecting block; 17, chute; 18, smoke exhaust pipe; 19, support plate; 20, corrugated pipe. DETAILED DESCRIPTION

[0033] The utility model will be made further detailed description in combination with example:

[0034] Example 1

[0035] As shown in Figure 1 , Figure 2 and Figure 3 , the utility model provides a waste heat recovery device based on hot blast furnace, including furnace body 1, the top of furnace body 1 is connected with smoke exhaust pipe 18 through hose 9, and the other end of furnace body 1 is provided with support frame 2, and the top of support frame 2 is fixedly installed with purification box 3, and the both side surfaces of the purification box 3 are fixedly connected with first flange plate 10, and the outside of each first flange plate 10 is installed with second flange plate 15 through bolt, and the side of second flange plate 15 of one side of purification box 3 is fixedly installed with fan 6, and the bottom surface of fan 6 is fixedly connected with the top of support frame 2, and the bottom of smoke exhaust pipe 18 of one end of furnace body 1 is fixedly connected with the top surface of fan 6, and the both end surfaces of each first flange plate 10 are fixedly installed with mounting plate 7, and the inside of each mounting plate 7 is slidably connected with connecting block 16, and the outside surface of each connecting block 16 respectively extends out of the inside of each mounting plate 7 and is fixedly installed with baffle 8, and each baffle 8 is pressed to each second flange plate 15 outside surface respectively, and the outer end of each mounting plate 7 is provided with adjusting part 5 for adjusting the movement of connecting block 16, and the other side of second flange plate 15 of the other side of purification box 3 is fixedly installed with recovery pipe 11, and recovery pipe 11 is fixedly connected with the other side surface of furnace body 1 through corrugated pipe 20, and the inside of support frame 2 is fixedly installed with controller 4.

[0036] In this embodiment, the hot blast furnace may vibrate during operation, and this vibration may easily affect the connection stability of the connection pipe for waste heat recovery of the exhaust gas. After a long period of vibration, the position of the pipe connection may become loose, which may lead to gas leakage, affecting the effect of waste heat recovery. In this application, the purification box 3 and the fan 6 are fixed on the top of the support frame 2, and the support frame 2 is placed on a flat ground, so that the purification box 3 and the fan 6 are separated from the furnace body 1, and the purification box 3 and the fan 6 can be supported and fixed, thereby reducing the influence of the purification box 3 and the fan 6 on the furnace body. In order to reduce the possibility of vibration of the furnace body 1, the hose 9 and the bellows 20 are provided to flexibly connect the exhaust pipe 18 and the recovery pipe 11 to the furnace body 1, thereby reducing the possibility of the exhaust pipe 18 and the recovery pipe 11 vibrating with the furnace body 1, and the position of the connecting block 16 on the mounting plate 7 can be adjusted by adjusting the adjusting component 5, so that the baffle 8 can squeeze the surface of the second flange 15, and the second flange 15 and the first flange 10 are reinforced, thereby reducing the possibility of loosening and separation between the purification box 3 and the second flange 15, and improving the effect of exhaust heat recovery.

[0037] Example 2

[0038] like Figure 3 、 Figure 4 and Figure 6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, each adjusting component 5 includes a fixing frame 501, each fixing frame 501 is fixedly connected to the outer end surface of each mounting plate 7, and a screw 503 is threadedly installed inside each fixing frame 501. The inner end surface of each screw 503 is rotatably connected to a push block 502 through a bearing, and each push block 502 extends to the interior of each mounting plate 7 and the connecting block 16, and the inner end surface of each push block 502 is provided with an inclined surface inclined toward the inner outer end, and each inclined surface is respectively squeezed against the inner wall of each connecting block 16, and the outer end surface of each screw 503 extends out of the interior of each fixing frame 501 and is fixedly installed with a handwheel 504, and the outer surface of the mounting plate 7 outside each connecting block 16 is provided with an inclined groove 17.

[0039] In the embodiment, the screw 503 is rotated to drive the push block 502 to move in the installation plate 7, and the inclined surface of the push block 502 can extrude the connecting block 16, so that the connecting block 16 moves to the inside of the installation plate 7, and the baffle 8 extrudes the surface of the second flange plate 15 to limit and reinforce the second flange plate 15; the hand wheel 504 is installed to enlarge the contact area between the hand of the operator and the screw 503, so as to facilitate the rotation of the screw 503; and the inclined groove 17 is arranged to increase the opening size of the outer surface of the installation plate 7, so as to facilitate the insertion of the connecting block 16 into the installation plate 7 from the outside, and facilitate the operation of the operator.

[0040] Embodiment 3

[0041] As shown in Figure 1 and Figure 2 on the basis of the embodiment 2, the utility model provides a technical scheme: preferably, one end surface of support frame 2 is fixedly installed with fixed rod 14, the top of fixed rod 14 is fixedly connected with fixed ring 13, the fixed ring 13 is fixedly connected with the outer surface of smoke exhaust pipe 18, the bottom of each first flange plate 10 is fixedly installed with support plate 19, and the top surface of each support plate 19 is respectively attached to the bottom surface of each second flange plate 15, and the bottom surface of support frame 2 is attached with several anti-skid strips 12.

[0042] In the embodiment, the fixed rod 14 and the fixed ring 13 are installed to connect the smoke exhaust pipe 18 with the support frame 2, which reinforces the smoke exhaust pipe 18, reduces the possibility of vibration of the smoke exhaust pipe 18, and further improves the effect of waste heat recovery of the furnace body 1; the support plate 19 is installed to support the second flange plate 15 from the bottom, which reduces the possibility of sliding of the second flange plate 15 to the bottom, and further improves the limiting effect of the second flange plate 15; and the anti-skid strips 12 are arranged to increase the friction between the bottom surface of the support frame 2 and the ground, thereby improving the stability of the support frame 2.

[0043] The working principle of the waste heat recovery device based on the hot blast furnace will be described in detail below.

[0044] As shown in Figures 1-6As shown, after the installation between the second flange plate 15 and the first flange plate 10 is completed, the operator can reverse the hand wheel 504, so that the push block 502 moves to the outer end, then inserts the connecting block 16 into the inside of the installation plate 7, and then rotates the hand wheel 504, which drives the screw rod 503 to rotate, and then the screw rod 503 extends into the inside of the connecting block 16, and extrudes the connecting block 16, so that the baffle 8 is attached to the surface of the second flange plate 15 and extrudes the second flange plate 15. After the furnace body 1 is used, the operator opens the fan 6, which can adsorb the waste gas generated in the furnace body 1. The waste gas can enter the inside of the purification box 3 through the hose 9 and the exhaust pipe 18. The purification box 3 uses a high-voltage electrostatic plasma purification method to adsorb the fire core, smoke and dust in the waste gas, purifies the waste gas, and makes the clean hot gas flow back to the inside of the furnace body 1 through the recovery pipe 11, thereby realizing the recycling of the waste heat of the waste gas.

[0045] The above is a detailed description of the present application, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A waste heat recovery device based on a hot blast furnace, comprising a furnace body (1); characterized in that: The top of the furnace body (1) is connected to a smoke exhaust pipe (18) through a hose (9), and a support frame (2) is provided at the other end of the furnace body (1). A purification box (3) is fixedly installed on the top of the support frame (2), and both side surfaces of the purification box (3) are fixedly connected to a first flange (10), and the outer side of each first flange (10) is fixedly installed with a second flange (15) by bolts. A fan (6) is fixedly installed on one side of the second flange (15) on one side of the purification box (3), and the bottom surface of the fan (6) is fixedly connected to the top of the support frame (2). The bottom of the smoke exhaust pipe (18) at one end of the furnace body (1) is fixedly connected to the top surface of the fan (6), and both end surfaces of each first flange (10) are fixed. A mounting plate (7) is installed, and a connecting block (16) is slidably connected to the inside of each mounting plate (7). The outer surface of each connecting block (16) extends out of the inside of each mounting plate (7) and is fixedly installed with a baffle (8). Each baffle (8) is pressed against the outer surface of each second flange (15). An adjusting component (5) for adjusting the movement of the connecting block (16) is provided at the outer end of each mounting plate (7). A recovery pipe (11) is fixedly installed on the other side of the second flange (15) on the other side of the purification box (3). The recovery pipe (11) is fixedly connected to the other side surface of the furnace body (1) through a bellows (20). A controller (4) is fixedly installed inside the support frame (2).

2. The waste heat recovery device based on a hot blast stove according to claim 1, characterized in that: Each of the adjusting components (5) includes a fixing frame (501), each of the fixing frames (501) is fixedly connected to the outer end surface of each of the mounting plates (7), a screw rod (503) is threadedly installed inside each of the fixing frames (501), and the inner end surface of each of the screw rods (503) is rotatably connected to a push block (502) through a bearing, and each of the push blocks (502) extends to the inside of each of the mounting plates (7) and the connecting block (16), and the inner end surface of each of the push blocks (502) is provided with an inclined surface inclined toward the outer end on the inner side, and each inclined surface is pressed against the inner wall of each of the connecting blocks (16).

3. The waste heat recovery device based on a hot blast stove according to claim 2, characterized in that: The outer end surface of each screw rod (503) extends out of the interior of each fixing frame (501) and is fixedly mounted with a hand wheel (504).

4. The waste heat recovery device based on a hot blast stove according to claim 3, characterized in that: An oblique groove (17) is provided on the outer surface of the mounting plate (7) outside each connecting block (16).

5. The waste heat recovery device based on a hot blast stove according to claim 1, characterized in that: A fixing rod (14) is fixedly mounted on one end surface of the support frame (2), and a fixing ring (13) is fixedly connected to the top of the fixing rod (14), and the fixing ring (13) is fixedly connected to the outer surface of the smoke exhaust pipe (18).

6. The waste heat recovery device based on a hot blast stove according to claim 5, characterized in that: A support plate (19) is fixedly mounted on the bottom of each first flange (10), and the top surface of each support plate (19) is respectively fitted with the bottom surface of each second flange (15).

7. The waste heat recovery device based on a hot blast stove according to claim 6, characterized in that: A plurality of anti-slip strips (12) are attached to the bottom surface of the support frame (2).

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