CN214171622U

CN214171622U - Connecting device for air nozzle primary air coal pipe of continuous fuming furnace

Info

Publication number: CN214171622U
Application number: CN202023274371.9U
Authority: CN
Inventors: 汪琴; 石俊阳; 石宏娇; 梁金凤; 石仁章; 王小明; 梁瑞勇; 何路波
Original assignee: Leiyang Yanxin Non Ferrous Metals Co ltd
Current assignee: Leiyang Yanxin Non Ferrous Metals Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-10
Anticipated expiration: 2030-12-31

Abstract

A connecting device of a tuyere primary air coal pipe of a continuous fuming furnace comprises an upper pressure-resistant rubber pipe, a connecting pipe, a tightening piece and a lower pressure-resistant rubber pipe; the port of the air-coal distribution pipe and the upper end of the connecting pipe of the continuous fuming furnace are sleeved in the upper pressure-resistant rubber pipe, the port of the air nozzle primary air-coal pipe and the lower end of the connecting pipe are sleeved in the lower pressure-resistant rubber pipe, and the air-coal distribution pipe and the air nozzle primary air-coal pipe are aligned with the connecting pipe; the tightening piece is fixed outside the upper pressure-resistant rubber tube and the lower pressure-resistant rubber tube. Thus, the utility model changes the traditional full rubber tube which is easy to wear through and leak coal into the combination of the connecting tube, the pressure-resistant rubber tube and the binding piece, which enables the continuous fuming furnace to operate safely and stably for a long time and avoids the faults and dangers which may be caused by adopting the full rubber tube; the major potential safety hazards that the traditional full rubber tube is easy to leak coal powder and explode are eliminated; meets the requirement of continuous fuming production.

Description

Connecting device for air nozzle primary air coal pipe of continuous fuming furnace

Technical Field

The utility model relates to a non-ferrous smelting's continuous fuming furnace technique, concretely relates to continuous fuming furnace's tuyere is wind coal pipe's connecting device once.

Background

The traditional fuming furnace has relatively mature technology, the air nozzle primary air coal pipe is sleeved with the port of the air coal distribution pipe by adopting a full rubber pipe, and the rubber pipe has the following advantages: one is to align the possible up and down port tilt error between the wind coal distribution pipe port and the wind nozzle primary wind coal pipe port. From the mechanical assembly point of view, the ports of the air coal distribution pipe positioned above and the ports of the air nozzle primary air coal pipe positioned below cannot be completely vertically aligned, and the use of the rubber pipe well solves the form and position deviation between the two ports and automatically aligns the axes. And secondly, if the fuming furnace is in failure in the operation process, the rubber tube can be detached to clean the slag in the tube and replace the slag when the slag flows backwards. Therefore, the rubber tube is an ideal pipeline connecting material, and the prepared rhizome of rehmannia is applied to the traditional fuming furnace for a long time.

However, the use of rubber tubing still has some drawbacks and drawbacks. The inner wall of the rubber pipe is subjected to high-speed friction and collision of a large amount of coal dust particles in the air coal sent by the primary air coal port, and the inner wall of the rubber pipe is very easy to thin to crack and leak coal under the conditions of friction and high temperature. Generally, stokehole workers need to check the rubber pipe for multiple times every day to prevent the rubber pipe from being worn through and spraying coal dust, and the sprayed coal dust is easy to explode in a high-temperature operation environment and has serious potential safety hazards. The conventional fuming furnace is operated intermittently, and the operation principle is that after one furnace slag is filled and the temperature in the furnace is continuously raised to form liquid furnace slag, a mixture of air and pulverized coal is continuously blown into the liquid furnace slag, so that valuable metals in the furnace slag are volatilized into smoke dust, the smoke dust is separated from the furnace slag, and then the residual furnace slag in the fuming furnace is emptied and fed in, and the fuming process is carried out repeatedly. Because the intermittent type nature of traditional fuming furnace operation, the state of the rubber tube of the check many times of stokehold worker is in time changed or is wrapped the operation but cracked rubber tube temporarily when empty stove. This is cumbersome and dangerous for conventional fuming furnace operation, but is still feasible. However, the continuous fuming furnace is not intermittent like the traditional process, once the continuous fuming furnace is started, the furnace can not be stopped at any time, and the rubber air-coal connecting pipe can not be replaced. Therefore, the continuous fuming furnace has higher requirements on the stability, the continuity and the safety of the connecting pipe, and the connecting pipe must meet the requirement that the continuous fuming furnace can safely and uninterruptedly operate for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connecting device of a wind nozzle primary air coal pipe of a continuous fuming furnace, aiming at the defects of the prior art, and ensuring the long-term, safe and stable operation of the continuous fuming furnace.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a connecting device of a tuyere primary air coal pipe of a continuous fuming furnace is characterized by comprising an upper pressure-resistant rubber pipe, a connecting pipe, a tightening piece and a lower pressure-resistant rubber pipe; wherein: the port of the air-coal distribution pipe and the upper end of the connecting pipe of the continuous fuming furnace are sleeved in the upper pressure-resistant rubber pipe, the port of the air nozzle primary air-coal pipe and the lower end of the connecting pipe are sleeved in the lower pressure-resistant rubber pipe, and the air-coal distribution pipe and the air nozzle primary air-coal pipe are aligned with the connecting pipe; the tightening piece is fixed outside the upper pressure-resistant rubber pipe and the lower pressure-resistant rubber pipe to ensure that the upper pressure-resistant rubber pipe, the port of the air-coal distribution pipe and the upper end of the connecting pipe as well as the lower pressure-resistant rubber pipe, the primary air-coal pipe of the air nozzle and the lower end of the connecting pipe are airtight and not loosened.

Preferably, the connecting pipe is made of a thick-wall seamless pipe. The drift diameter of the connecting pipe is the same as that of the primary air coal pipe of the air nozzle.

Preferably, the binding piece is an iron wire and a binding hoop.

Preferably, the length of the upper pressure-resistant rubber pipe and the lower pressure-resistant rubber pipe is 2-3 times of the diameter of the primary air coal pipe of the air nozzle.

Thus, the utility model improves the traditional full rubber tube which is easy to wear through and leak coal into the combination of the connecting tube, the pressure-resistant rubber tube and the binding piece, is simple, easy to operate and reliable, can ensure the continuous fuming furnace to safely and stably operate for a long time, and avoids the faults and dangers possibly caused by adopting the full rubber tube; the major potential safety hazards that the traditional full rubber tube is easy to leak coal powder and explode are eliminated; waste in time, materials and personnel is reduced; meets the requirement of continuous fuming production.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a in fig. 1.

In the figure, 1-main wind coal pipe; 2-air coal distribution pipe; 3-installing a pressure-resistant rubber pipe; 4-connecting pipe; 5-binding the fastening piece; 6-lower pressure-resistant rubber tube; 7-air nozzle primary air coal pipe; 8-air nozzle.

Detailed Description

Referring to fig. 1 and 2, the present invention relates to a connection device for a primary air coal pipe of a tuyere of a continuous fuming furnace, which comprises an upper pressure-resistant rubber pipe 3, a connection pipe 4, a binding piece 5 and a lower pressure-resistant rubber pipe 6; wherein: the upper ends of the port of the air coal distribution pipe 2 and the connecting pipe 4 of the continuous fuming furnace are sleeved in the upper pressure-resistant rubber pipe 3, the lower ends of the port of the air nozzle primary air coal pipe 7 and the connecting pipe 4 are sleeved in the lower pressure-resistant rubber pipe 6, and the air coal distribution pipe 2 and the air nozzle primary air coal pipe 7 are aligned with the connecting pipe 4; the tightening piece 5 is fixed outside the upper pressure-resistant rubber tube 3 and the lower pressure-resistant rubber tube 6 to ensure that the upper pressure-resistant rubber tube 3 and the air-coal distribution tube port and the upper end of the connecting tube 4 as well as the lower pressure-resistant rubber tube 6 and the air nozzle primary air-coal tube 7 and the lower end of the connecting tube 4 are airtight and not loose.

Preferably, the connecting pipe 4 is made of a thick-wall seamless pipe, and the diameter of the thick-wall seamless pipe is preferably the same as that of the primary air coal pipe 7 of the air nozzle.

Preferably, the length of the upper pressure-resistant rubber tube 3 and the lower pressure-resistant rubber tube 6 is 2 to 3 times the diameter of the air nozzle primary air coal tube 7.

Preferably, the tightening member 5 is a wire and a binding band.

Claims

1. A connecting device of a tuyere primary air coal pipe of a continuous fuming furnace is characterized by comprising an upper pressure-resistant rubber pipe (3), a connecting pipe (4), a binding piece (5) and a lower pressure-resistant rubber pipe (6); wherein: the port of an air coal distribution pipe (2) and the upper end of a connecting pipe (4) of the continuous fuming furnace are sleeved in the upper pressure-resistant rubber pipe (3), the port of an air nozzle primary air coal pipe (7) and the lower end of the connecting pipe (4) are sleeved in the lower pressure-resistant rubber pipe (6), and the air coal distribution pipe (2) and the air nozzle primary air coal pipe (7) are aligned with the connecting pipe (4); the binding piece (5) is fixed outside the upper pressure-resistant rubber pipe (3) and the lower pressure-resistant rubber pipe (6) to ensure that the upper pressure-resistant rubber pipe (3) and the air-coal distribution pipe port and the upper end of the connecting pipe (4) as well as the lower pressure-resistant rubber pipe (6) and the air nozzle primary air-coal pipe (7) and the lower end of the connecting pipe (4) are airtight and not loose.

2. The connection device of the tuyere primary air coal pipe of the continuous fuming furnace as recited in claim 1, wherein the connection pipe (4) is made of a thick-walled seamless pipe.

3. The connection device of the tuyere primary air coal pipe of the continuous fuming furnace as recited in claim 1, wherein the diameter of the connection pipe (4) is the same as that of the tuyere primary air coal pipe (7).

4. The connection device of the tuyere primary air coal pipe of the continuous fuming furnace as recited in claim 1, wherein the binding member (5) is an iron wire and a binding hoop.

5. The connection device of the tuyere primary air coal pipe of the continuous fuming furnace as recited in claim 1, wherein the length of the upper pressure-resistant rubber tube (3) and the lower pressure-resistant rubber tube (6) is 2 to 3 times the diameter of the tuyere primary air coal pipe (7).