Liquid slag water-cooling waste heat recovery equipment

Abstract

The utility model discloses liquid slag water-cooling waste heat recovery equipment, which belongs to the field of metallurgy and comprises a heat insulation cylinder used for containing liquid slag. The slag cooler is arranged on the lower side of the heat insulation cylinder and is used for cooling the liquid slag; the heat exchange mechanism is used for conducting heat exchange on the liquid slag in the slag cooler. The utility model provides equipment which is reliable and low in operation cost, and on the premise of meeting the environment protection requirement, the energy consumption of the boiler is reduced, and the heat carried by the liquid slag is effectively utilized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgy field, specifically, relate to a kind of liquid slag water-cooling waste heat recovery equipment. BACKGROUND

[0002] With environmental protection requirement further improves, for solid waste and dangerous waste, more inclined to adopt liquid slag discharge mode to carry out harmlessness treatment, current liquid slag is mainly formed by water-cooling mode water quenching slag, after solid-liquid separation using slag grab, cooling water is naturally cooled or temperature is reduced after being recycled using by forced cooling mode, this part of heat is about 3-6% of processing fuel energy, the heat carried by liquid slag is not effectively utilized. SUMMARY

[0003] In order to solve the above problems, the utility model adopts the following technical scheme:

[0004] A kind of liquid slag water-cooling waste heat recovery equipment, comprising:

[0005] Heat-insulating cylinder, the heat-insulating cylinder is used to hold liquid slag;

[0006] Slag cooler, the slag cooler is set to the downside of the heat-insulating cylinder, for receiving the liquid slag in the heat-insulating cylinder and cooling;

[0007] Heat exchange mechanism, the heat exchange mechanism is connected with the slag cooler, for heat exchange with the liquid slag in the slag cooler.

[0008] Further, the lower end of the slag cooler is tapered.

[0009] Further, the heat exchange mechanism comprises:

[0010] Water pool, the water pool is located at the downside of the slag cooler, and the lower end of the slag cooler is provided with a drain port;

[0011] Water-water heat exchanger, set to one side of the slag cooler, for heat exchange to the slag flushing water in water pool, the water inlet end of the heat exchange pipeline of the water-water heat exchanger extends to the bottom end of the water pool, and the water outlet end is communicated with the slag cooler, and the heat exchange medium of the water-water heat exchanger is demineralized water.

[0012] Further, one side of the lower end of the heat-insulating cylinder is communicated with ceramic flow groove.

[0013] Further, the slag cooler comprises:

[0014] Outer cylinder, the upper end of the outer cylinder is open structure, and the drain port is located at the downside of the outer cylinder, and is communicated with the outer cylinder;

[0015] An inner cylinder, an upper end of the inner cylinder is an open structure, and the inner cylinder is located inside the outer cylinder, a sandwich is arranged between the inner cylinder and the outer cylinder, and a height of the inner cylinder is less than a height of the outer cylinder;

[0016] A partition plate is arranged in the inner cylinder and separates the inner cylinder into a left slag discharge chamber and a right slag discharge chamber, an upper end of the partition plate extends to an upper side of the inner cylinder at least partially, a lower end of the left slag discharge chamber is communicated with the heat exchange pipeline through a first branch pipeline, and a lower end of the right slag discharge chamber is communicated with the heat exchange pipeline through a second branch pipeline;

[0017] A swing flow tank is swingably arranged at an end of the upper end of the partition plate and is located at a lower end of the ceramic flow tank, a first end of the swing flow tank is located at an upper side of the left slag discharge chamber, and a second end of the swing flow tank is located at an upper side of the right slag discharge chamber;

[0018] A driving piece, a fixed end of the driving piece is fixedly connected with the partition plate, and a driving end is fixedly connected with one end of the swing flow tank;

[0019] A left-chamber slag discharge port, a first end of the left-chamber slag discharge port is communicated with the left slag discharge chamber, and the other end extends to an outside of the outer cylinder;

[0020] A right-chamber slag discharge port, a first end of the right-chamber slag discharge port is communicated with the right slag discharge chamber, and the other end extends to an outside of the outer cylinder.

[0021] Further, the driving piece is one of a pneumatic cylinder, a hydraulic cylinder and an electric cylinder.

[0022] Further, the inner cylinder is made of wear-resistant ceramic material, and the air permeability of the wear-resistant ceramic is greater than 50%.

[0023] Further, valves are arranged on the first branch pipeline and the second branch pipeline.

[0024] Further, a circulating pump is arranged on the heat exchange pipeline.

[0025] Further, the water pool is provided with a water supplementing pipe, and a water supplementing valve is arranged on the water supplementing pipe.

[0026] The liquid slag water cooling waste heat recovery equipment has the advantages that the equipment is reliable, the equipment has low equipment and operation costs, and the heat carried by the liquid slag is effectively utilized under the premise of meeting environmental protection.

[0027] The liquid slag water cooling waste heat recovery equipment has the advantages that the equipment is reliable, the equipment has low equipment and operation costs, and the heat carried by the liquid slag is effectively utilized under the premise of meeting environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a structural schematic view of a liquid slag water cooling waste heat recovery equipment.

[0029] In the figure: 1, heat insulation cylinder; 1.1 liquid slag; 2, ceramic flow groove; 3, slag cooler; 3.1, outer cylinder; 3.2, inner cylinder; 3.3, partition; 3.4, swing flow groove; 3.5, air cylinder; 3.6, left chamber slag discharge port; 3.7, water discharge port; 3.8, right chamber slag discharge port; 4.1, first valve; 4.2, second valve; 5, water-water heat exchanger; 6, circulating pump; 7, water tank; 8, water replenishing valve; 9.1, desalted water inlet end; 9.2, desalted water outlet end; 10.1, slag flushing water inlet end; 10.2, slag flushing water outlet end. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] This part will describe the specific embodiments of the present application in detail. The preferred embodiments of the present application are shown in the accompanying drawings. The drawings are used to supplement the description in the text part and enable people to intuitively and visually understand each technical feature and the overall technical scheme of the present application. However, it cannot be understood as a limitation on the protection scope of the present application.

[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0034] Embodiment 1

[0035] Reference Figure 1 A liquid slag water cooling waste heat recovery equipment, comprising:

[0036] The heat insulation cylinder 1 is used for containing the liquid slag 1.1.

[0037] The slag cooler 3 is arranged on the lower side of the heat insulation cylinder 1 and is used for receiving the liquid slag 1.1 in the heat insulation cylinder 1 and cooling.

[0038] The heat exchange mechanism is connected with the slag cooler 3 and is used for heat exchange with the liquid slag 1.1 in the slag cooler 3.

[0039] The utility model provides a reliable, equipment and lower equipment of operating cost, under the premise of satisfying environmental protection, has reduced the energy consumption of boiler, makes the heat of liquid slag to have obtained the effective utilization.

[0040] In the embodiment, the inner wall and the outer wall of the heat insulation cylinder 1 are filled with castable.

[0041] In the embodiment, the lower end of the slag cooler 3 is tapered.

[0042] In the embodiment, the heat exchange mechanism comprises:

[0043] The water pool 7 is located at the lower side of the slag cooler 3, and the lower end of the slag cooler 3 is provided with a drain port 3.7.

[0044] The water-to-water heat exchanger 5 is arranged at one side of the slag cooler 3 and is used for heat exchanging the slag washing water in the water pool 7, the water inlet end of the heat exchange pipeline of the water-to-water heat exchanger 5 extends to the bottom end of the water pool 7, the water outlet end is communicated with the slag cooler 3, and the heat exchange medium of the water-to-water heat exchanger 5 is desalted water.

[0045] In the embodiment, the water temperature of the water inlet end 9.1 of the desalted water is 20 DEG C, and the water temperature of the water outlet end 9.2 of the desalted water is 50 DEG C.

[0046] In the embodiment, one side of the lower end of the heat insulation cylinder 1 is communicated with the ceramic flow groove 2.

[0047] In the embodiment, the slag cooler 3 comprises:

[0048] The outer cylinder 3.1 is of an open structure at the upper end, the drain port 3.7 is located at the lower side of the outer cylinder 3.1 and is communicated with the outer cylinder 3.1.

[0049] The inner cylinder 3.2 is of an open structure at the upper end and is located at the inner side of the outer cylinder 3.1, a cladding layer is arranged between the inner cylinder 3.2 and the outer cylinder 3.1, and the height of the inner cylinder 3.2 is less than the height of the outer cylinder 3.1.

[0050] Preferably, the height of the inner cylinder 3.2 is 2 / 3 to 3 / 4 of the height of the outer cylinder 3.1.

[0051] In the embodiment, the upper part of the outer cylinder 3.1 and the wear-resistant ceramic inner cylinder 3.2 is not closed, when the water inlet is too large and the water level exceeds the wear-resistant ceramic inner cylinder 3.2, the water directly flows into the cladding layer from the top and is discharged from the drain port 3.7, so that the slag cooler 3 is prevented from being full.

[0052] The partition plate 3.3 is arranged in the inner cylinder 3.2 and divides the inner cylinder 3.2 into relatively independent left slag discharging chambers and right slag discharging chambers, the upper end of the partition plate 3.3 at least partially extends to the upper side of the inner cylinder 3.2, the lower end of the left slag discharging chamber is communicated with the heat exchange pipeline through a first branch pipeline, and the lower end of the right slag discharging chamber is communicated with the heat exchange pipeline through a second branch pipeline.

[0053] Preferably, the upper end of the partition plate is flush with the upper end of the outer cylinder 3.1.

[0054] In a specific implementation, the water temperature at the water inlet end of the slag flushing water is 65°C, and the water temperature at the water outlet end of the slag flushing water is 30°C.

[0055] The pressure is not less than 0.4 MPa when entering from the lower part of the slag cooler 3.

[0056] In a specific implementation, the partition plate 3.3 is located at the middle position of the inner cylinder 3.2, dividing the inner cylinder into left and right slag discharge chambers of the same size.

[0057] The swing chute 3.4 is swingably arranged at the end of the upper end of the partition plate 3.3 and located at the lower end of the ceramic chute 2, the first end of the swing chute 3.4 is located at the upper side of the left slag discharge chamber, and the second end is located at the upper side of the right slag discharge chamber.

[0058] The driving member is fixedly connected at the fixed end to the partition plate 3.3 and fixedly connected at the driving end to one end of the swing chute 3.4.

[0059] The left chamber slag discharge port 3.6 is in communication at the first end with the left slag discharge chamber and extends to the outside of the outer cylinder 3.1 at the other end.

[0060] The right chamber slag discharge port 3.7 is in communication at the first end with the right slag discharge chamber and extends to the outside of the outer cylinder 3.1 at the other end.

[0061] In a specific implementation, a sealing ring is arranged at the connection between the left chamber slag discharge port 3.6 and the outer cylinder 3.1 and at the connection between the right chamber slag discharge port 3.7 and the outer cylinder 3.1.

[0062] In the embodiment, the driving member is one of a pneumatic cylinder 3.5, a hydraulic cylinder, or an electric cylinder.

[0063] In the embodiment, the inner cylinder 3.2 is made of wear-resistant ceramic material, and the air permeability of the wear-resistant ceramic is greater than 50%.

[0064] In a specific implementation, in order to prevent the inner wall of the slag cooler 3 from being worn, the inner cylinder 3.2 is made of wear-resistant ceramic material, and the air permeability of the wear-resistant ceramic inner cylinder is greater than 50%.

[0065] In a specific implementation, the filtration water amount of the wear-resistant ceramic inner cylinder 3.2 is 1.1-1.2 times the circulating water amount.

[0066] In a specific implementation, the slag stacking time of the half bin of the slag cooler 3 is greater than the water filtration time of the wear-resistant ceramic inner cylinder 3.2 plus the slag discharge time.

[0067] In a specific implementation, the water discharge amount of the water discharge port 3.7 is more than twice the left chamber slag flushing water or the right chamber slag flushing water.

[0068] In the embodiment, the first branch pipeline and the second branch pipeline are both provided with valves.

[0069] In the embodiment, the first branch pipeline is provided with a first valve 4.1, and the second branch pipeline is provided with a second valve 4.2.

[0070] In the embodiment, the heat exchange pipeline is provided with a circulating pump 6.

[0071] In the embodiment, the water tank 7 is provided with a water supplement pipeline, and the water supplement pipeline is provided with a water supplement valve 8.

[0072] Working principle: the slag cooler 3 is divided into two independent chambers by the partition plate 3.3, in the operation process, the left chamber is first opened to flush slag water, when the water level is low, the filtering speed is less than the water filling speed, and the water level will always rise, when the filtering speed is the same as the water filling speed, the water level will reach a balance state, at this time, the low point of the swing flow channel 3.4 is fixed to the left slag discharge chamber through the air cylinder 3.5, and the slag discharge preparation is completed, the temperature meters are arranged in the left slag discharge chamber and the right slag discharge chamber, when the water temperature on the left side reaches 65 DEG C or above, the right slag discharge chamber is switched, after the left chamber circulating water filtering is completed, the left chamber slag discharge port 3.6 is opened to discharge slag, after the slag discharge is completed, the slag discharge port is closed, and the left chamber flushing water inlet is opened, and the circulation is sequentially carried out, and the automatic control is realized through the PLC.

[0073] In the embodiment, the cooling processes of the right slag discharge chamber and the left slag discharge chamber are the same.

[0074] Liquid slag process: the molten slag in the adiabatic cylinder 1 enters the inside of the slag cooler 3 through the ceramic flow channel 2 along the swing flow channel 3.4, and is discharged from the left chamber slag discharge port 3.6 or the right chamber slag discharge port 3.8 after water cooling.

[0075] Circulating cooling water process: the water in the water tank 7 enters the water-water heat exchanger 5 to exchange heat through the circulating pump 6, is cooled after heat exchange, enters the inside of the slag cooler 3 through the left chamber flushing slag water and the right chamber flushing slag water to cool the liquid slag, and the flushing slag water after heat absorption is filtered through the wear-resistant ceramic inner cylinder 3.2, flows into the interlayer of the outer cylinder 3.1 and the wear-resistant ceramic inner cylinder 3.2, and flows into the water tank 7 from the water outlet 3.7, since part of the circulating water is taken away by evaporation, the water level is reduced, and the water level is maintained by supplementing water through the water supplement valve 8.

[0076] The above only describes preferred embodiments of the utility model, and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A liquid slag water-cooled waste heat recovery apparatus characterized by comprising: include: An insulating cylinder, used to hold liquid slag; A slag cooler is disposed on the lower side of the insulation cylinder and is used to receive and cool the liquid slag inside the insulation cylinder. A heat exchange mechanism is connected to the slag cooler and is used to exchange heat with the liquid slag inside the slag cooler.

2. The liquid slag water-cooled waste heat recovery apparatus according to claim 1, wherein The lower end of the slag cooler is tapered.

3. The liquid slag water-cooled waste heat recovery apparatus according to claim 1, wherein The heat exchange mechanism includes: A water tank is located below the slag cooler, and a drain outlet is provided at the lower end of the slag cooler. A water-to-water heat exchanger is installed on one side of the slag cooler and is used to exchange heat with the flushing water in the water tank. The inlet end of the heat exchanger's heat exchange pipeline extends to the bottom of the water tank, and the outlet end is connected to the slag cooler. The heat exchange medium of the water-to-water heat exchanger is demineralized water.

4. The liquid slag water-cooled waste heat recovery apparatus according to claim 3, wherein A ceramic flow channel is connected to one side of the lower end of the insulation cylinder.

5. A liquid slag water-cooled heat recovery equipment according to claim 4, characterized in that, The slag cooler includes: The outer cylinder has an open structure at its upper end, and the drain outlet is located on the lower side of the outer cylinder and is connected to the outer cylinder. The inner cylinder has an open upper end and is located inside the outer cylinder. A sandwich layer is provided between the inner cylinder and the outer cylinder. The height of the inner cylinder is less than the height of the outer cylinder. A partition is disposed inside the inner cylinder and divides the inner cylinder into a relatively independent left slag discharge chamber and a right slag discharge chamber. The upper end of the partition extends at least partially to the upper side of the inner cylinder. The lower end of the left slag discharge chamber is connected to the heat exchange pipeline through a first branch pipe, and the lower end of the right slag discharge chamber is connected to the heat exchange pipeline through a second branch pipe. A swing flow channel is swingably disposed at the upper end of the partition plate and located directly below the ceramic flow channel. The first end of the swing flow channel is located above the left slag discharge chamber, and the second end is located above the right slag discharge chamber. A driving component, wherein the fixed end of the driving component is fixedly connected to the partition plate, and the driving end is fixedly connected to one end of the swing flow channel; The left chamber slag discharge port has a first end connected to the left slag discharge chamber and the other end extending to the outside of the outer cylinder; The right chamber slag discharge port has a first end connected to the right slag discharge chamber and the other end extending to the outside of the outer cylinder.

6. A liquid slag water-cooled heat recovery equipment according to claim 5, characterized in that, The driving component is one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

7. A liquid slag water-cooled heat recovery equipment according to claim 5, characterized in that, The inner cylinder is made of wear-resistant ceramic material, and the air permeability of the wear-resistant ceramic is greater than 50%.

8. The liquid slag water-cooled waste heat recovery apparatus according to claim 5, wherein Valves are installed on both the first branch pipeline and the second branch pipeline.

9. The liquid slag water-cooled waste heat recovery apparatus according to claim 5, wherein A circulating pump is installed on the heat exchange pipeline.

10. The liquid slag water-cooled waste heat recovery apparatus according to claim 3, wherein The water tank is equipped with a water supply pipe, and the water supply pipe is equipped with a water supply valve.

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