CN221859265U - Waste heat collection pipeline - Google Patents

Abstract

The utility model relates to the technical field of cement rotary kiln, and in particular to a waste heat collection pipeline. Its technical scheme includes: a rotary kiln tail, a coil and an insulation box, the rotary kiln tail is fitted with a coil, and the coil is sleeved with a connector 1 and a connector 2, the connector 1 and the connector 2 are welded with metal fins, and the metal fins are fitted and installed on the rotary kiln tail; a support plate is welded on the bottom end face of the insulation box; a water pump is installed on the bottom end face of the support plate, and a liquid inlet pipe 1 and a liquid inlet pipe 2 are installed on the water pump; the end of the liquid inlet pipe 1 away from the water pump is embedded and fixed in the insulation box, and the end of the liquid inlet pipe 2 away from the water pump is embedded and fixed in the coil, the connector 1 and the connector 2 are welded with a connecting frame, and bolts are installed in the connecting frame through threads. The utility model meets the waste heat collection of cement rotary kiln, increases heat conduction connection and reduces heat waste.

Description

Waste heat collection pipeline

Technical Field

The utility model relates to the technical field of cement rotary kilns, in particular to a waste heat collection pipeline.

Background Art

Cement rotary kiln belongs to the category of building materials equipment and is a type of lime kiln. According to the different materials processed, rotary kilns can be divided into cement rotary kiln, metallurgical chemical rotary kiln and lime rotary kiln. Cement rotary kiln is the main equipment of cement clinker dry process and wet process production line, and cement rotary kiln consumes a lot of energy. Except for special circumstances, cement rotary kiln is in a state of continuous operation, which makes the surface of cement rotary kiln chimney have a lot of waste heat. In traditional cement production, this heat is not taken seriously and will be wasted, which leads to low energy utilization rate and does not meet the concept of energy saving and environmental protection.

After searching, the patent announcement number CN212109575U discloses a cement rotary kiln waste heat recovery device, which belongs to the field of cement production technology, including a cylinder, a heat pipe is connected to the outer gap of the cylinder, and both ends of the heat pipe are fixedly connected to a guide tube, one side of the guide tube is fixedly connected to the input end of a pressure pump, and the pressure pump is fixedly installed on the top of the heat storage box, and one end of the sealing plug is plugged with a support. The utility model can absorb the waste heat inside the rotary kiln into the heat transfer medium liquid oil inside the heat pipe through the installed heat transfer pipe through the principle of heat conduction, thereby improving the heat transfer efficiency and enhancing the use effect.

The CN212109575U in the prior art can absorb the waste heat inside the rotary kiln into the heat transfer medium liquid oil inside the heat transfer pipe through the installed heat transfer pipe when in use, thereby improving the heat transfer efficiency and enhancing the use effect. However, when used again, the heat conduction of a single pipe is prone to cause heat loss, and a part of the pipe is not in contact with the heat conduction during the heat conduction, which affects the heat conduction effect.

Utility Model Content

The purpose of the utility model is to provide a waste heat collection pipeline to solve the problems raised in the above background technology.

To achieve the above purpose, the utility model provides the following technical solutions: a waste heat collection pipeline, including a rotary kiln tail, a coil and an insulation box,

The rotary kiln tail is fitted with a coil, and the coil is sleeved with a first connector and a second connector, and the first connector and the second connector are both welded with metal fins, and the metal fins are fitted on the rotary kiln tail;

A support plate is welded to the bottom end surface of the thermal insulation box;

A water pump is installed on the bottom end surface of the support plate, and a first liquid inlet pipe and a second liquid inlet pipe are installed on the water pump;

The end of the first liquid inlet pipe facing away from the water pump is embedded and fixed in the heat preservation box, and the end of the second liquid inlet pipe facing away from the water pump is embedded and fixed in the coil.

Preferably, the connector 1 and the connector 2 are both welded with a connecting frame, and bolts are installed in the connecting frame through threads. The bolts are installed in the connecting frame through threads, so that when using the coil to collect the heat conduction waste heat at the kiln tail of the rotary kiln, the personnel can sleeve the connector 1 and the connector 2 on the coil, so that the connector 1 and the connector 2 are installed on the coil, and after installation, the metal fins on the connector 1 and the connector 2 can be installed on the kiln tail of the rotary kiln for connection.

Preferably, a support frame is welded to the bottom end surface of the support plate, and a base is welded to the bottom end surface of the support frame. The support plate is installed and supported by the support frame and the base.

Preferably, a liquid adding pipe is embedded and fixed on the top surface of the insulated box, and the liquid adding pipe is in liquid communication with the insulated box. Through the liquid adding pipe and the insulated box, personnel can inject the liquid for heat conduction for waste heat recovery into the insulated box for storage.

Preferably, a drain pipe is embedded and fixed on the bottom end surface of the insulated box, the drain pipe is in liquid communication with the insulated box, and a valve is installed on the drain pipe through a flange. The drain pipe is in liquid communication with the insulated box, so that the heat-conducting water in the insulated box can be discharged after heat exchange and waste heat can be collected, and the heated water can be used during discharge.

Preferably, a connecting pipe is embedded and fixed at one end of the coil away from the second liquid inlet pipe, and the end of the connecting pipe away from the coil is embedded and fixed in the heat preservation box. By embedding and fixing the end of the connecting pipe away from the coil in the heat preservation box, water enters the coil and circulates, and is heated by the heat at the tail of the rotary kiln, and then discharged back into the heat preservation box for storage and heat preservation.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model sets an insulation box. When personnel recover heat from the tail of the rotary kiln in cement production, the liquid is connected to the insulation box through a liquid adding pipe, so that personnel can inject the heat-conducting liquid for waste heat recovery into the insulation box for storage, and water can be drawn into the coil by turning on the water pump. After the water enters, the end of the connecting pipe away from the coil is embedded and fixed in the insulation box, so that the water enters the coil and circulates and is heated by the heat of the tail of the rotary kiln, and then discharged back into the insulation box for storage and insulation, thereby collecting the waste heat.

2. The utility model provides metal fins. When personnel recover heat from the tail of the rotary kiln in cement production, bolts are installed through the inner threads of the connecting frame. When personnel use the coil to collect heat from the tail of the rotary kiln, they can sleeve the connector 1 and the connector 2 on the coil, so that the connector 1 and the connector 2 are fitted on the coil. After installation, the metal fins on the connector 1 and the connector 2 can be fitted on the tail of the rotary kiln for connection, so that the metal fins conduct heat and heat the water flowing in the coil through the connector 1 and the connector 2, thereby meeting the waste heat recovery and reducing the heat waste caused by single pipeline continuous heat exchange.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of the utility model;

FIG2 is a rear view schematic diagram of the utility model;

FIG. 3 is an enlarged structural schematic diagram of A in FIG. 1 of the present utility model.

In the figure: 1. base; 2. support frame; 3. drain pipe; 4. liquid inlet pipe 1; 5. water pump; 6. liquid inlet pipe 2; 7. rotary kiln tail; 8. metal fins; 9. connector 1; 10. connector 2; 11. coil; 12. connecting pipe; 13. liquid adding pipe; 14. insulation box; 15. support plate; 16. bolts; 17. connecting frame.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1

As shown in Fig. 1-3, the waste heat collection pipeline proposed by the utility model includes a rotary kiln tail 7, a coil 11 and an insulation box 14.

A coil 11 is fitted on the rotary kiln tail 7, and a connector 1 9 and a connector 2 10 are sleeved on the coil 11. Metal fins 8 are welded on the connector 1 9 and the connector 2 10, and the metal fins 8 are fitted on the rotary kiln tail 7;

A support plate 15 is welded to the bottom end surface of the heat preservation box 14;

A water pump 5 is installed on the bottom end surface of the support plate 15, and a liquid inlet pipe 1 4 and a liquid inlet pipe 2 6 are installed on the water pump 5;

One end of the liquid inlet pipe 1 4 facing away from the water pump 5 is embedded and fixed in the heat preservation box 14 , and one end of the liquid inlet pipe 2 6 facing away from the water pump 5 is embedded and fixed in the coil 11 .

The bottom end surface of the support plate 15 is welded with a support frame 2 , and the bottom end surface of the support frame 2 is welded with a base 1 , and the support plate 15 is installed and supported by the support frame 2 and the base 1 .

A liquid adding pipe 13 is embedded and fixed on the top surface of the insulation box 14, and the liquid adding pipe 13 is in liquid communication with the insulation box 14. Through the liquid adding pipe 13 and the insulation box 14, personnel can inject waste heat recovery and heat-conducting liquid into the insulation box 14 for storage.

A drain pipe 3 is embedded and fixed on the bottom end surface of the insulation box 14. The drain pipe 3 is in liquid communication with the insulation box 14, and a valve is installed on the drain pipe 3 through a flange. The drain pipe 3 is in liquid communication with the insulation box 14, so that the heat-conducting water in the insulation box 14 can exchange heat, collect waste heat, and then open the valve for discharge. The heated water can be utilized during discharge.

Based on Example 1: When personnel recover heat from the tail of the rotary kiln 7 in cement production, the liquid is connected to the insulation box 14 through the liquid adding pipe 13, so that the personnel can inject the heat-conducting liquid for waste heat recovery into the insulation box 14 for storage, and by turning on the water pump 5, water can be drawn into the coil 11, and after the water enters, the end of the connecting pipe 12 away from the coil 11 is embedded and fixed in the insulation box 14, so that the water enters the coil 11 and circulates and is heated by the heat of the tail of the rotary kiln 7, and then discharged back into the insulation box 14 for storage and insulation, thereby collecting the waste heat.

Embodiment 2

As shown in Fig. 1-3, the waste heat collection pipeline proposed by the present invention, compared with the first embodiment, further comprises: a rotary kiln tail 7, a coil 11 and an insulation box 14,

A coil 11 is fitted on the rotary kiln tail 7, and a connector 1 9 and a connector 2 10 are sleeved on the coil 11. Metal fins 8 are welded on the connector 1 9 and the connector 2 10, and the metal fins 8 are fitted on the rotary kiln tail 7;

A support plate 15 is welded to the bottom end surface of the heat preservation box 14;

A water pump 5 is installed on the bottom end surface of the support plate 15, and a liquid inlet pipe 1 4 and a liquid inlet pipe 2 6 are installed on the water pump 5;

One end of the liquid inlet pipe 1 4 facing away from the water pump 5 is embedded and fixed in the heat preservation box 14 , and one end of the liquid inlet pipe 2 6 facing away from the water pump 5 is embedded and fixed in the coil 11 .

Connecting frame 17 is welded inside connecting piece 1 9 and connecting piece 2 10, and bolt 16 is installed in connecting frame 17 through thread. Bolt 16 is installed through the inner thread of connecting frame 17, so that when personnel use coil 11 to collect heat from rotary kiln tail 7, they can put connecting piece 1 9 and connecting piece 2 10 on coil 11, so that connecting piece 1 9 and connecting piece 2 10 are installed on coil 11. After installation, metal fins 8 on connecting piece 1 9 and connecting piece 2 10 can be installed on rotary kiln tail 7 for connection.

The end of the coil 11 away from the liquid inlet pipe 6 is embedded and fixed with a connecting pipe 12, and the end of the connecting pipe 12 away from the coil 11 is embedded and fixed in the insulation box 14. Through the end of the connecting pipe 12 away from the coil 11 is embedded and fixed in the insulation box 14, water enters the coil 11 and circulates, and is heated by the heat of the rotary kiln tail 7, and then can be discharged back to the insulation box 14 for storage and insulation.

Based on Example 2: When personnel recover heat from the tail 7 of the rotary kiln in cement production, a bolt 16 is installed through the inner thread of the connecting frame 17, so that when personnel use the coil 11 to collect waste heat from the tail 7 of the rotary kiln 7 by heat conduction, personnel can sleeve the connector 1 9 and the connector 2 10 on the coil 11, so that the connector 1 9 and the connector 2 10 are fitted on the coil 11, and after installation, the metal fins 8 on the connector 1 9 and the connector 2 10 can be fitted on the tail 7 of the rotary kiln for connection, so that the metal fins 8 conduct heat and heat the water flowing in the coil 11 through the connector 1 9 and the connector 2 10, thereby meeting the waste heat recovery and reducing the heat waste caused by single-pipe heat exchange.

It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims (6)

1. The utility model provides a waste heat collection pipeline, includes rotary kiln tail (7), coil pipe (11) and insulation can (14), its characterized in that:

A coil pipe (11) is mounted on the kiln tail (7) of the rotary kiln in a fitting way, a first connecting piece (9) and a second connecting piece (10) are sleeved on the coil pipe (11), metal fins (8) are welded on the first connecting piece (9) and the second connecting piece (10), and the metal fins (8) are mounted on the kiln tail (7) of the rotary kiln in a fitting way;

A supporting plate (15) is welded on the bottom end surface of the insulation box (14);

A water pump (5) is arranged at the bottom end surface of the supporting plate (15), and a first liquid inlet pipe (4) and a second liquid inlet pipe (6) are arranged on the water pump (5);

one end of the first liquid inlet pipe (4) deviating from the water pump (5) is embedded and fixed in the heat insulation box (14), and one end of the second liquid inlet pipe (6) deviating from the water pump (5) is embedded and fixed in the coil pipe (11).

2. The waste heat collection circuit of claim 1, wherein: a connecting frame (17) is welded in each of the first connecting piece (9) and the second connecting piece (10), and bolts (16) are arranged in the connecting frame (17) through threads.

3. The waste heat collection circuit of claim 1, wherein: the bottom end face of the supporting plate (15) is welded with the supporting frame (2), and the bottom end face of the supporting frame (2) is welded with the base (1).

4. The waste heat collection circuit of claim 1, wherein: the top end surface of the heat preservation box (14) is embedded and fixed with a liquid adding pipe (13), and the liquid adding pipe (13) is in liquid communication with the heat preservation box (14).

5. The waste heat collection circuit of claim 1, wherein: the bottom end surface of the insulation box (14) is embedded and fixed with a liquid discharge pipe (3), the liquid discharge pipe (3) is in liquid communication with the insulation box (14), and a valve is arranged on the liquid discharge pipe (3) through a flange plate.

6. The waste heat collection circuit of claim 1, wherein: one end of the coil pipe (11) deviating from the second liquid inlet pipe (6) is embedded and fixed with a connecting pipe (12), and one end of the connecting pipe (12) deviating from the coil pipe (11) is embedded and fixed in the heat insulation box (14).