Circulating type kiln tail waste heat hot water heating device

Abstract

The utility model discloses a circulating kiln tail waste heat water heating device, which relates to the technical field of waste heat recovery and comprises a kiln. The inner cavity is integrally formed in the middle of the interior of the kiln, a water transfer tank is arranged behind the kiln, a water inlet pipeline is arranged at the front end of the water transfer tank and extends into the inner cavity, replacement pipes are connected to the two sides of the other end of the water inlet pipeline, and the replacement pipes are laid in the inner wall of the kiln; tap water with the standard temperature in the constant-temperature transfer water tank is pressurized through a water pump, flows through a series pipe of a slow cooling section of the kiln to be heated to about 120 DEG C and is conveyed back to the constant-temperature transfer water tank, the temperature is not lower than 90 DEG C at the moment, it is guaranteed that the temperature in the constant-temperature water tank is kept stable through continuous cold water heating circulation, and favorable conditions are provided for subsequent heat exchange. And the purposes of energy conservation and consumption reduction are achieved by reutilization of circulating water.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery technical field, concretely is a circulating kiln tail waste heat heating hot water device. BACKGROUND

[0002] Tunnel kiln: it is a kind of continuous production heat equipment, is suitable for firing various products, such as ceramic, refractory material, abrasive, tile etc. Its structure is relatively complex, by kiln body, kiln car, code frame, preheating zone, firing zone, cooling zone, hot air extraction device, burner and ventilation device etc. Tunnel kiln works, the product on kiln car is heated from preheating zone, reaches the highest temperature firing to firing zone, again to cooling zone, and the whole firing process is completed.

[0003] Brick kiln will produce a large amount of heat energy in the firing process, when material passes through the heating zone of kiln, temperature will rise to a certain value, at this time, the heating efficiency of kiln begins to decline, but there is still a large amount of heat energy surplus, these energy do not utilize to cause waste, improve energy consumption and environmental pollution, so we propose a circulating kiln tail waste heat heating hot water device to solve the problems in the above. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a circulating kiln tail waste heat heating hot water device to solve the problems of waste, energy consumption and environmental pollution caused by the energy generated in the brick kiln.

[0005] To achieve the above object, the utility model provides the following technical scheme: a circulating kiln tail waste heat heating hot water device, including kiln,

[0006] Further comprising:

[0007] Box body is integrally formed in the inside middle of kiln, the inside of box body is provided with inner chamber, the rear of kiln is provided with water turning tank, the front end of water turning tank is provided with water inlet pipeline, and water inlet pipeline extends to the inside of inner chamber, the two sides of the other end of water inlet pipeline are connected with replacement pipe, and replacement pipe is laid in the inner wall of kiln, the front end of water turning tank is provided with water return pipeline, water return pipeline extends to the inside of inner chamber, and the other end of replacement pipe is connected with water return pipeline.

[0008] Preferably, the outer side of water turning tank is provided with water pump, and one end of water inlet pipeline is connected with water pump, and the upper end of water pump is provided with valve.

[0009] Preferably, the inside of inner chamber is laid with furnace roller, and water inlet pipeline, water return pipeline and replacement pipe are all below furnace roller.

[0010] Preferably, the bottom of the kiln is provided with a first support, and the bottom of the water tank is provided with a second support.

[0011] Preferably, the water inlet pipeline, the water return pipeline and the replacement pipeline are all seamless pipes for fixed-size boilers.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. The tap water at the standard temperature in the constant-temperature water tank is pressurized by a water pump, flows through the heating pipe in the kiln slow cooling section, is heated to about 120C°, and is delivered back to the constant-temperature water tank, at this time, the temperature is not lower than 90C°, the continuous and uninterrupted water heating and circulation are used to keep the temperature in the constant-temperature water tank stable, and provide favorable conditions for subsequent heat exchange, and the repeated use of the circulating water achieves the purpose of energy saving and consumption reduction.

[0014] 2. The water inlet main pipe and the water return main pipe are arranged in two loops and do not interfere with each other, the pipes are subjected to heat preservation treatment, the heat efficiency is higher, and the pipes in the kiln are all seamless pipes for fixed-size boilers, without welds and sand holes, so that the water in the kiln is not leaked under the temperature and pressure, and the pipes in the kiln are arranged below the roller in the kiln, the excess heat is used, the kiln atmosphere is not affected, and the debugging difficulty is not increased. Even if the pipes are deformed and bent downward for a long time, the normal brick discharge is not affected, and the kiln is not blocked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the present application;

[0016] Figure 2 It is a whole structure top view of the present application;

[0017] In the drawing: 1, kiln; 2, tank body; 3, inner cavity; 4, roller in the kiln; 5, first support; 6, water return pipeline; 7, water tank; 8, valve; 9, second support; 10, water inlet pipeline; 11, water pump; 12, replacement pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0019] Please refer to Figures 1-2 The present application provides an embodiment: a circulating kiln tail heat water heating device, which comprises a kiln 1.

[0020] Further comprising:

[0021] Box 2, which is integrally formed in the interior of the kiln 1, the interior of the box 2 is provided with the inner cavity 3, the rear of the kiln 1 is provided with the rotating water tank 7, the front end of the rotating water tank 7 is provided with the water inlet pipeline 10, and the water inlet pipeline 10 extends to the inside of the inner cavity 3, and the two sides of the other end of the water inlet pipeline 10 are connected with the replacement pipe 12, and the replacement pipe 12 is laid in the inner wall of the kiln 1, the front end of the rotating water tank 7 is provided with the water return pipeline 6, the water return pipeline 6 extends to the inside of the inner cavity 3, and the other end of the replacement pipe 12 is connected with the water return pipeline 6.

[0022] The standard temperature tap water in the rotating water tank 7 is pressurized by the water pump 11, delivered to the replacement pipe 12 in the inner cavity 3 of the kiln 1 through the water inlet pipeline 10, heated to about 120C°, and delivered back to the rotating water tank 7 through the water return pipeline 6, at this time the temperature is not lower than 90C°, through continuous and uninterrupted cold water heating circulation to ensure that the temperature in the rotating water tank 7 remains stable, providing favorable conditions for subsequent heat exchange, and the repeated use of circulating water to achieve the purpose of energy saving and consumption reduction.

[0023] Please refer to Figure 2 , the outside of the rotating water tank 7 is provided with the water pump 11, and one end of the water inlet pipeline 10 is connected with the water pump 11, the upper end of the water pump 11 is provided with the valve 8, and the water is circulated and delivered by the water pump 11.

[0024] Please refer to Figure 1 , the inner cavity 3 is provided with the inner roller 4, and the water inlet pipeline 10, the water return pipeline 6 and the replacement pipe 12 are all below the inner roller 4, the inner pipeline is arranged below the roller of the kiln 1, which utilizes the excess heat and does not affect the kiln atmosphere and does not increase the debugging difficulty. Even if there is deformation and bending after long-term use, it will not affect the normal brick production and will not block the kiln.

[0025] Please refer to Figure 1 , the bottom of the kiln 1 is provided with the first support 5, and the bottom of the rotating water tank 7 is provided with the second support 9, which supports the bottom of the kiln 1 and the rotating water tank 7.

[0026] Please refer to Figure 2 , the water inlet pipeline 10, the water return pipeline 6 and the replacement pipe 12 are all fixed size boiler seamless pipes without weld and sand eye to ensure that the kiln is not water leakage under temperature and pressure.

[0027] Working principle: the standard temperature tap water in the rotating water tank 7 is pressurized by the water pump 11, delivered to the replacement pipe 12 in the inner cavity 3 of the kiln 1 through the water inlet pipeline 10, heated to about 120C°, and delivered back to the rotating water tank 7 through the water return pipeline 6, at this time the temperature is not lower than 90C°, through continuous and uninterrupted cold water heating circulation to ensure that the temperature in the rotating water tank 7 remains stable, providing favorable conditions for subsequent heat exchange, and the repeated use of circulating water to achieve the purpose of energy saving and consumption reduction.

[0028] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A circulating kiln tail heat water heating device, comprising a kiln (1); characterized in that Further comprising: a box body (2) integrally arranged in the middle of the inside of the kiln (1), the inside of the box body (2) is provided with an inner cavity (3), the rear of the kiln (1) is provided with a water turning box (7), the front end of the water turning box (7) is provided with a water inlet pipeline (10), the water inlet pipeline (10) extends to the inside of the inner cavity (3), the two sides of the other end of the water inlet pipeline (10) are connected with displacement pipes (12), the displacement pipes (12) are laid in the inner wall of the kiln (1), the front end of the water turning box (7) is provided with a water return pipeline (6), the water return pipeline (6) extends to the inside of the inner cavity (3), and the other end of the displacement pipe (12) is connected with the water return pipeline (6).

2. A device for heating water with waste heat from a kiln according to claim 1, characterized in that: The outer side of the water turning box (7) is provided with a water pump (11), one end of the water inlet pipeline (10) is connected with the water pump (11), and the upper end of the water pump (11) is provided with a valve (8).

3. A device for heating water with waste heat from a kiln according to claim 1, characterized in that: The inside of the inner cavity (3) is laid with an in-furnace roller (4), and the water inlet pipeline (10), the water return pipeline (6) and the displacement pipe (12) are all located below the in-furnace roller (4).

4. A device for heating water with waste heat from a kiln according to claim 1, characterized in that: The bottom of the kiln (1) is provided with a first support (5), and the bottom of the water turning box (7) is provided with a second support (9).

5. The device according to claim 1, wherein: the device is a circulating kiln tail heat water heating device. The water inlet pipeline (10), the water return pipeline (6) and the displacement pipe (12) are all fixed-length boiler seamless pipes.

Images