Waste heat recovery device for automobile die casting heat treatment furnace

Abstract

The utility model relates to the technical field of waste heat recovery, and provides a waste heat recovery device for an automobile die casting heat treatment furnace, which comprises a waste heat recovery box, a smoke inlet pipe, an impurity removal screen plate, a partition plate, a combustion-supporting pipe, a smoke conveying pipe, a filter screen plate and a mounting component, the smoke inlet pipe is communicated with one side of the waste heat recovery box, and a smoke inlet valve is arranged on the smoke inlet pipe; the impurity removing screen plate is detachably connected into the waste heat recycling box and located on one side of the smoke inlet pipe, impurities in the smoke of the automobile mold casting heat treatment furnace can be filtered conveniently, and the influence of the impurities on waste heat recycling of the smoke of the automobile mold casting heat treatment furnace is reduced; the combustion-supporting pipe is arranged between the impurity removing screen plate and the partition plate, and the two smoke conveying pipes symmetrically communicate with the partition plate. By means of the technical scheme, the problem that in the prior art, impurities in smoke can affect the waste heat recovery efficiency is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery technical field, concretely relates to a waste heat recovery device for automobile mould casting heat treatment furnace. BACKGROUND

[0002] The automobile mould casting is the mould part for manufacturing automobile parts produced through the casting process, and it is the basic structural part of the automobile mould, provides the installation foundation and support for other parts of the mould, and the shape and dimensional accuracy directly affect the forming quality of the automobile parts.

[0003] The automobile mould casting heat treatment furnace is the key equipment for heat treatment of automobile mould casting, which mainly generates heat through electric energy, gas or oil energy, heats the automobile mould casting in the furnace, reaches the predetermined heat treatment temperature, and then performs heat preservation, cooling and other operations according to different heat treatment process requirements, so as to change the organization structure and performance of the casting. The current heat treatment furnace produces a large amount of heat when burning, and direct emission will cause waste of heat energy.

[0004] Therefore, the utility model with patent announcement No. CN217922211U discloses a waste heat recovery device of high-efficiency heat treatment furnace, which recovers the waste heat in the waste heat recovery device, collects the heat of the waste heat for reheat processing through the heat processing mechanism, then the hot gas enters the distillation water mechanism through the connecting pipeline, so that the distillation water mechanism can form and collect distilled water, and the utilization rate of waste heat is improved. Although it is convenient to improve the utilization rate of waste heat of the heat treatment furnace, the flue gas discharged from the automobile mould casting heat treatment furnace usually contains a large amount of impurities, which is not convenient to filter and remove, and the impurities in the flue gas will affect the waste heat recovery efficiency. UTILITY MODEL CONTENTS

[0005] The utility model provides a waste heat recovery device for automobile mould casting heat treatment furnace, which solves the problem of the influence of impurities in the flue gas on the waste heat recovery efficiency in the related technology.

[0006] The technical scheme of the utility model is as follows: a waste heat recovery device for automobile mould casting heat treatment furnace, comprising a waste heat recovery box, an inlet pipe, a decontamination screen, a partition plate, a combustion-supporting pipe, a smoke conveying pipe, a filter screen and a mounting assembly.

[0007] The inlet pipe is connected to one side of the waste heat recovery box.

[0008] The decontamination screen is detachably connected in the waste heat recovery box, and the decontamination screen is located on one side of the inlet pipe.

[0009] The partition plate is fixedly connected to the inner side wall of the waste heat recovery box.

[0010] The combustion-supporting pipe is arranged between the impurity-removing screen and the partition plate.

[0011] The two smoke-feeding pipes are symmetrically connected to the partition plate.

[0012] The filter screen is detachably installed on the other side of the partition plate.

[0013] The mounting assembly is detachably installed on the waste heat recovery tank.

[0014] Further, the mounting assembly comprises:

[0015] The mounting plate is detachably connected to the waste heat recovery tank, and the impurity-removing screen and the filter screen are fixedly connected to the bottom end of the mounting plate.

[0016] The mounting bracket is fixedly connected to the mounting plate, and the bottom end of the mounting bracket is provided with a mounting plane matched with the outer wall of the waste heat recovery tank.

[0017] The two mounting screws are threadedly connected between the mounting bracket and the waste heat recovery tank.

[0018] The handle is fixedly connected to the top end of the mounting bracket.

[0019] Further, one side of the combustion-supporting pipe is connected with an air inlet pipe, and the other side of the combustion-supporting pipe is connected with an air outlet pipe, and the air inlet pipe and the air outlet pipe are respectively provided with air inlet valves and air outlet valves.

[0020] Further, the waste heat recovery tank is provided with a mounting opening matched with the mounting plate, and the mounting opening is fixedly connected with a sealing gasket.

[0021] Further, one side of the waste heat recovery tank is connected with a water inlet pipe, and the water inlet pipe is provided with a water inlet valve, and one side of the waste heat recovery tank close to the filter screen is connected with a water outlet pipe, and the water outlet pipe is provided with a water outlet valve.

[0022] Further, the smoke-feeding pipe is provided with a smoke inlet valve, one side of the waste heat recovery tank is connected with a smoke exhaust pipe, and the smoke exhaust pipe is provided with a smoke exhaust valve.

[0023] The working principle and beneficial effects of the utility model are as follows:

[0024] 1. The utility model discloses a smoke inlet pipe, the flue gas generated in the automobile die casting heat treatment furnace is conveniently entered into the waste heat recovery tank, through the impurity removal screen board, the impurities in the flue gas can be filtered, so as to reduce the influence of the impurities on the automobile die casting heat treatment furnace flue gas waste heat recovery efficiency,

[0025] 2. The utility model discloses a gas inlet pipe and gas outlet pipe cooperate, the combustion-supporting gas is conveniently flowed in the combustion-supporting pipe, so as to be preheated through the flue gas generated in the automobile die casting heat treatment furnace, thereby the automobile die casting heat treatment furnace flue gas can be waste heat recovery,

[0026] 3. The utility model discloses a partition and waste recovery tank cooperate, the treatment water is conveniently stored, through the treatment water, the impurities in the automobile die casting heat treatment furnace flue gas are conveniently filtered and purified again, thereby the filtration purification effect of the automobile die casting heat treatment furnace flue gas can be improved, and the waste heat in the automobile die casting heat treatment furnace flue gas can heat the treatment water, thereby the waste heat recovery effect of the automobile die casting heat treatment furnace flue gas can be improved,

[0027] 4. The utility model discloses a filter screen board, the flue gas and treatment water can be filtered again, thereby the cleanliness when the treatment water is discharged can be improved, and the pollution to the working environment when the automobile die casting heat treatment furnace flue gas is discharged can be reduced. DRAWINGS

[0028] The utility model will be explained further in detail below in combination with the drawings and specific embodiment.

[0029] Fig. 1 It is the whole structure schematic view of the utility model,

[0030] Fig. 2 It is the whole structure schematic view of another angle of the utility model,

[0031] Fig. 3 It is the structure schematic view of the utility model section,

[0032] Fig. 4 It is the structure schematic view of the utility model combustion-supporting pipe, gas inlet pipe and gas outlet pipe cooperation.

[0033] In the drawing: 1, waste heat recovery tank, 2, smoke inlet pipe, 3, impurity removal screen board, 4, partition, 5, combustion-supporting pipe, 6, smoke delivery pipe, 7, filter screen board, 8, mounting plate, 9, mounting frame, 10, mounting screw, 11, handle ring, 12, gas inlet pipe, 13, gas outlet pipe, 14, water inlet pipe, 15, water outlet pipe, 16, smoke exhaust pipe. SPECIFIC EMBODIMENT

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0035] As shown in Figs. 1-4 The embodiment provides a waste heat recovery device for an automobile die casting heat treatment furnace, which comprises a waste heat recovery box 1, a smoke inlet pipe 2, a impurity removal net plate 3, a partition plate 4, a combustion-supporting pipe 5, a smoke conveying pipe 6, a filter net plate 7 and a mounting assembly. The smoke inlet pipe 2 is communicated to one side of the waste heat recovery box 1, and a smoke inlet valve is arranged on the smoke inlet pipe 2. When the smoke inlet valve is opened, the automobile die casting heat treatment furnace flue gas can enter the waste heat recovery box 1 through the smoke inlet pipe 2. The impurity removal net plate 3 is detachably connected in the waste heat recovery box 1, and is located at one side of the smoke inlet pipe 2, so that the impurities in the automobile die casting heat treatment furnace flue gas can be filtered, and the influence of the impurities on the automobile die casting heat treatment furnace flue gas waste heat recovery is reduced. The partition plate 4 is fixedly connected to the inner side wall of the waste heat recovery box 1. A treatment cavity can be formed through the partition plate 4 and the waste heat recovery box 1, so that the treatment water can be stored. The combustion-supporting pipe 5 is arranged between the impurity removal net plate 3 and the partition plate 4. The smoke conveying pipe 6 is arranged in two, and the two smoke conveying pipes 6 are symmetrically communicated to the partition plate 4. The smoke conveying pipe 6 is communicated into the treatment water, so that the flue gas after preliminary filtration can be conveyed into the treatment water for treatment. The filter net plate 7 is detachably arranged on the other side of the partition plate 4, so that the impurities in the flue gas and the treatment water can be filtered. The mounting assembly is detachably arranged on the waste heat recovery box 1. A smoke exhaust pipe 16 is communicated to one side of the waste heat recovery box 1, and a smoke exhaust valve is arranged on the smoke exhaust pipe 16. When the smoke exhaust valve is opened, the treated automobile die casting heat treatment furnace flue gas can be exhausted through the smoke exhaust pipe 16 for next treatment.

[0036] Specifically, the mounting assembly comprises a mounting plate 8, a mounting frame 9, mounting screws 10 and a handle ring 11. The mounting plate 8 is detachably connected to the waste heat recovery box 1. A mounting opening matched with the mounting plate 8 is formed in the waste heat recovery box 1, and a sealing gasket is fixedly connected to the mounting opening. The mounting plate 8 can be stably mounted on the waste heat recovery box 1, and the sealing property of the waste heat recovery box 1 can be improved. The impurity removal net plate 3 and the filter net plate 7 are fixedly connected to the bottom end of the mounting plate 8. The mounting frame 9 is fixedly connected to the mounting plate 8, and a mounting plane matched with the outer side wall of the waste heat recovery box 1 is formed in the bottom end of the mounting frame 9. The mounting screws 10 are arranged in two, and are threadedly connected between the mounting frame 9 and the waste heat recovery box 1. The handle ring 11 is fixedly connected to the top end of the mounting frame 9.

[0037] When the impurity removal screen 3 and the filter screen 7 are placed in the waste heat recovery box 1, the mounting plate 8 is mounted at the mounting opening, the mounting frame 9 is placed on the waste heat recovery box 1, and the mounting screw 10 is screwed between the mounting frame 9 and the waste heat recovery box 1, so that the mounting plate 8, the impurity removal screen 3 and the filter screen 7 can be stably mounted on the waste heat recovery box 1. When the impurity removal screen 3 and the filter screen 7 need to be cleaned, the mounting frame 9 and the mounting plate 8 are disassembled on the waste heat recovery box 1, and the impurity removal screen 3 and the filter screen 7 are disassembled in the waste heat recovery box 1.

[0038] Specifically, one side of the combustion-supporting pipe 5 is communicated with an air inlet pipe 12, and the other side of the combustion-supporting pipe 5 is communicated with an air outlet pipe 13. An air inlet valve and an air outlet valve are respectively installed on the air inlet pipe 12 and the air outlet pipe 13. The combustion-supporting pipe 5 is S-shaped.

[0039] When the air inlet pipe 12 is opened, the combustion-supporting gas can enter the combustion-supporting pipe 5. The S-shaped combustion-supporting pipe 5 can slow down the flow speed of the combustion-supporting gas in the combustion-supporting pipe 5, so as to fully heat the combustion-supporting gas by the automobile mold casting heat treatment furnace flue gas, thereby improving the waste heat recovery effect of the automobile mold casting heat treatment furnace.

[0040] Specifically, one side of the waste heat recovery box 1 is communicated with a water inlet pipe 14, and the water inlet pipe 14 is provided with a water inlet valve. The side of the waste heat recovery box 1 close to the filter screen 7 is communicated with a water outlet pipe 15, and the water outlet pipe 15 is provided with a water outlet valve.

[0041] When the water inlet valve is opened, the treatment water can enter the waste heat recovery box 1 through the water inlet pipe 14, so as to further filter and purify the impurities in the automobile mold casting heat treatment furnace flue gas. At the same time, the treatment water can be heated by the waste heat in the automobile mold casting heat treatment furnace flue gas, thereby improving the waste heat recovery effect of the automobile mold casting heat treatment furnace flue gas.

[0042] In this embodiment, first, the smoke valve is opened, the automobile mold casting heat treatment furnace flue gas enters the waste heat recovery tank 1 through the smoke pipe 2, in the flow process of the automobile mold casting heat treatment furnace flue gas, the impurity screen plate 3 can preliminarily filter the impurities in the automobile mold casting heat treatment furnace flue gas, at the same time, the automobile mold casting heat treatment furnace flue gas can heat the combustion-supporting gas in the combustion-supporting pipe 5, so as to recycle the automobile mold casting heat treatment furnace flue gas waste heat, then the automobile mold casting heat treatment furnace flue gas can uniformly enter the treatment water through two smoke pipes 6, the treatment water can filter and refine the automobile mold casting heat treatment furnace flue gas again, at the same time, the automobile mold casting heat treatment furnace flue gas can heat the treatment water, so as to treat the subsequent treatment water, then the filter screen plate 7 can filter the impurities in the automobile mold casting heat treatment furnace flue gas and the treatment water, at this time, the exhaust valve and the water outlet valve are opened respectively, so that the automobile mold casting heat treatment furnace flue gas can be discharged through the smoke exhaust pipe 16, and the treatment water can be discharged through the water outlet pipe 15.

[0043] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waste heat recovery device for a heat treatment furnace for automotive mold castings, characterized in that, include: Waste heat recovery box (1); Smoke inlet pipe (2), the smoke inlet pipe (2) is connected to one side of the waste heat recovery box (1); Impurity removal screen (3), which is detachably connected to the waste heat recovery box (1) and is located on one side of the flue gas inlet pipe (2); A partition plate (4) is fixedly connected to the inner wall of the waste heat recovery box (1); Combustion-supporting tube (5), wherein the combustion-supporting tube (5) is disposed between the impurity removal mesh plate (3) and the partition plate (4); Smoke supply pipe (6), wherein two smoke supply pipes (6) are provided, and the two smoke supply pipes (6) are symmetrically connected to the partition plate (4); A filter screen (7) is detachably installed on the other side of the partition plate (4); The installation component is detachably installed on the waste heat recovery box (1).

2. The waste heat recovery device for a heat treatment furnace for automotive mold castings according to claim 1, characterized in that, The installation components include: Mounting plate (8), which is detachably connected to the waste heat recovery box (1), and the impurity removal screen plate (3) and the filter screen plate (7) are both fixedly connected to the bottom end of the mounting plate (8); Mounting bracket (9), which is fixedly connected to the mounting plate (8), and the bottom end of the mounting bracket (9) is provided with a mounting plane that matches the outer wall of the waste heat recovery box (1); Mounting screws (10), wherein two mounting screws (10) are provided, and both mounting screws (10) are threadedly connected between the mounting bracket (9) and the waste heat recovery box (1); A handle (11) is fixedly connected to the top of the mounting bracket (9).

3. The waste heat recovery device for a heat treatment furnace for automotive mold castings according to claim 2, characterized in that, One side of the combustion-supporting pipe (5) is connected to an air inlet pipe (12), and the other side of the combustion-supporting pipe (5) is connected to an air outlet pipe (13). An air inlet valve and an air outlet valve are respectively installed on the air inlet pipe (12) and the air outlet pipe (13).

4. The waste heat recovery device for a heat treatment furnace for automotive mold castings according to claim 3, characterized in that, The waste heat recovery box (1) has an installation port that matches the mounting plate (8), and a sealing gasket is fixedly connected to the installation port.

5. A waste heat recovery device for a heat treatment furnace for automotive mold castings according to claim 4, characterized in that, One side of the waste heat recovery box (1) is connected to a water inlet pipe (14), and a water inlet valve is provided on the water inlet pipe (14). The side of the waste heat recovery box (1) near the filter screen (7) is connected to a water outlet pipe (15), and a water outlet valve is provided on the water outlet pipe (15).

6. The waste heat recovery device for a heat treatment furnace for automotive mold castings according to claim 5, characterized in that, The inlet pipe (2) is equipped with an inlet valve, and the waste heat recovery box (1) is connected to an exhaust pipe (16) on one side, and an exhaust valve is installed on the exhaust pipe (16).

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