CN210506410U

CN210506410U - Ou ye stove sack album ash storehouse high temperature ash cooling device

Info

Publication number: CN210506410U
Application number: CN201921312619.0U
Authority: CN
Inventors: 季书民
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-12
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses an Oume stove sack ash collecting bin high temperature ash cooling device, including the cooling device body, cooling device body middle part is the cylinder cylindric, cooling device body both ends are personally submitted coniformly, set up the closure baffle in the cooling device body both ends respectively, horizontal interval is setting up ash conveying pipe between the closure baffle, it arranges to be equilateral triangle between the adjacent ash conveying pipe, cooling device body both ends are being connected respectively and are advancing ash pipe and ash pipe, be close to and be setting up the coolant entry on the cooling device body top surface of advancing ash pipe, be close to and be setting up the cooling device export under the cooling device body bottom surface of ash pipe, staggered interval is arranging baffling baffle about being in the cooling device body, all have a convex breach on baffling baffle's top surface or the bottom surface. The device can reduce the ash temperature, can meet the ash discharge temperature requirement of the suction and discharge tank car when the ash temperature is high, can discharge the ash in the ash collecting bin in time, and can not cause the cloth bag of the ash collecting bin with a high ash level to be damaged, so that the dust is leaked.

Description

Ou ye stove sack album ash storehouse high temperature ash cooling device

Technical Field

The utility model relates to a high-temperature ash cooling device for a cloth bag ash collecting bin of an Ou smelting furnace.

Background

The forebody of the euro-metallurgical furnace is a COREX furnace, and the COREX furnace is called the euro-metallurgical furnace after the COREX furnace is moved from Bao-Steel Lujing to eight-Steel. In order to realize the functions of energy conservation and environmental protection, the Ou-Meta furnace reforms a top gas filler scrubber and an adjustable venturi scrubber into a gravity dust removal and dry dust removal system. The dry dust removal coal gas purification process is adopted to replace the original COREX shaft furnace coal gas wet dust removal process, the Europe and metallurgy furnace has a new breakthrough in the use of raw fuel compared with the COREX furnace, the fuel mainly adopts the production process of coke, foam coal and injection bituminous coal, in order to improve the gas generation amount, the volatile content of the coal is higher than that of the coke, the coal ratio is higher, the coke ratio is lower, unburned coal powder in the furnace is more, the dust content in the raw gas is higher, the dust removal load of a cloth bag is increased, meanwhile, in order to improve the smelting rate of the Europe and metallurgy furnace, the metallization rate of the shaft furnace is increased, the shaft furnace is iron oxide reduced by CO, the metallization rate is high, the temperature of top coal is higher, the smelting strength is improved, and the top temperature of the shaft furnace is 80-120 ℃ higher than that of a blast furnace with the same device. The work load of the working condition of the bag-type dust collector of the Europe smelting furnace is increased, so that the ash temperature and the ash amount of the bag are increased. A large amount of high temperature ashes are stored in the ash collecting bin, if the ash collecting bin reaches a high material level due to untimely emptying, a cloth bag of the ash collecting bin is ejected out, ash storage of the ash collecting bin is damaged, and meanwhile, discharged particles dispersed in the ash collecting bin seriously exceed the standard and are dense black, so that the environmental protection is influenced. Because the ash in the ash collecting bin is discharged by the suction and discharge tank car, the requirement on the ash temperature of the ash collecting bin is low, so that the ash collecting bin cannot be discharged when the ash temperature is high, and the normal production of the bag-type dust collector is influenced.

Disclosure of Invention

An object of the utility model is to provide an Ou smelt furnace sack ash collection storehouse high temperature ash cooling device, this device can reduce the ash temperature, can satisfy the row's ash temperature requirement of suction and discharge tank car when the ash temperature is high, makes the ash in ash collection storehouse can in time get rid of, can not cause high grey level ash collection storehouse sack to damage, makes the dust leak.

The utility model provides a technical scheme that its technical problem adopted is: a high-temperature ash cooling device of an Oumei furnace cloth bag ash collecting bin comprises a cooling device body, the middle of the cooling device body is cylindrical, two ends of the cooling device body are conical, closed partition plates are arranged in two ends of the cooling device body respectively, ash conveying pipes are arranged between the closed partition plates at horizontal intervals, the adjacent ash conveying pipes are arranged in an equilateral triangle mode, two ends of the cooling device body are connected with an ash inlet pipe and an ash outlet pipe respectively, a cooling medium inlet is arranged on the top surface of the cooling device body close to the ash inlet pipe, a cooling device outlet is arranged below the bottom surface of the cooling device body close to the ash outlet pipe, baffle plates are arranged in the cooling device body in an up-and-down staggered mode at intervals, arc-shaped notches are arranged on the top surface or the bottom surface of each baffle plate, and the arc-shaped height of each notch is 20-25% of the inner diameter of the cooling device body.

When the bag-type dust collector is used for conveying dust, bag-type dust is conveyed into the dust collecting bin body through the dust collecting bin dust inlet by a pneumatic dense-phase dust conveying technology, dust conveying gas after the bag-type dust is settled is filtered by the dust collecting bin, and clean gas is discharged out of the dust collecting bin by the dust collecting bin. After the high-temperature ash enters the ash collecting bin, the gas cooling device is started firstly to carry out primary cooling on the entering high-temperature ash, and the primary cooled gas is also discharged by the ash collecting bin in a diffused mode. The heat exchange cooling device designed during ash discharge of the ash collecting bin is the structure of the device, and has the following characteristics: the shape of the cooling device is cylindrical, the end sockets at two ends are conical, the shell of the cooling device body and the baffle are directly welded together, and the cooling device is simple and compact in structure. The purpose of installing the baffle is to improve the heat transfer coefficient of the outer surface of the pipe, and in order to obtain good effect, the baffle is provided with a segmental notch, and the height of the segmental notch is about 20-25% of the inner diameter of the shell, thus being beneficial to heat transfer. The baffle plate can not only prevent short circuit of fluid and increase fluid flow speed, but also force the fluid to pass through the ash conveying pipe bundle in a cross flow mode for many times according to a specified path, so that the turbulence degree is greatly increased.

The ash conveying pipes are arranged in an equilateral triangle, the equilateral triangle is compact in arrangement, the turbulence degree of fluid outside the pipes is high, the surface heat transfer coefficient is large, the temperature of the material can be brought out quickly, and the purpose of quickly cooling is achieved.

This heat transfer cooling device can be quick the temperature of reduction material, and the during operation cold fluid walks the shell side, and the hot-fluid walks the tube side, makes area of contact greatly increased for heat transfer speed has ensured the demand of suction and discharge tank car to the temperature, has stopped the high material level in collection ash storehouse and has collected ash storehouse sack and has been pushed out the incident that influences the environmental protection and take place. The heat exchange cooling device has the advantages of easy manufacture, low cost, strong processing capacity, convenient cleaning of heat exchange surfaces, wide selectable structural materials, strong adaptability and temperature regulation, and the tube plates are reinforced because the tubes are mutually supported between the two tube plates, so the heat exchange cooling device has low manufacturing cost and can be widely applied to the field of reducing the temperature of powder materials at the same time.

Through the cooling device of the utility model, the high-temperature cloth bag ash is smoothly discharged after being cooled, and the smooth production is ensured. After the high-temperature ash is input into the ash collecting bin, the high-temperature ash is initially cooled by the gas cooling device. After the suction and discharge tank car is in place, the pipe can be quickly disassembled by connecting and discharging ash, the suction and discharge tank car is started, the ash discharge valve of the ash collection bin is opened, high-temperature ash enters the pipe, the heat exchange cooling device inlet and each pipe pass through the ash discharge valve of the ash collection bin, and then the high-temperature ash is discharged into the suction and discharge tank car through the cold ash outlet and the cold ash outlet pipe. Meanwhile, when the tank car absorbs hot ash, cooling medium enters the shell side from the cooling medium inlet and then is baffled by the baffling baffle plate, and then continuously flows out from the cooling medium outlet and the cooling medium outlet pipe for heat exchange.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of the connection structure of the present invention;

fig. 2 is a side sectional view of the cooling device body of the present invention.

Detailed Description

A high-temperature ash cooling device for a cloth bag ash collecting bin of an Ou metallurgical furnace is shown in figures 1 and 2 and comprises a cooling device body 14, wherein the middle part of the cooling device body 14 is cylindrical, the two ends of the cooling device body 14 are conical, sealing clapboards 17 are respectively arranged at the two ends of the

cooling device body

14, 18, ash conveying pipes 12 are horizontally arranged between the closed

partition plates

17 and 18 at intervals, the adjacent ash conveying pipes 12 are arranged in an equilateral triangle, two ends of a cooling device body 14 are respectively connected with an ash inlet pipe 10 and an ash outlet pipe 5, a cooling medium inlet 4 is arranged on the top surface of the cooling device body close to the ash inlet pipe, a cooling device outlet 15 is arranged below the bottom surface of the cooling device body close to the ash outlet pipe, baffle plates 13 are arranged in the cooling device body in an up-and-down staggered interval mode, and arc-shaped notches are arranged on the top surface or the bottom surface of each baffle plate 13 and have the arc-shaped height of 20-25% of the inner diameter of the cooling device body.

When the device is used, the ash inlet pipe 10 is connected with the cloth bag ash collecting bin 1 through a quick-assembly pipeline, high-temperature ash 2 enters the ash conveying pipe 12 through the ash inlet pipe 10 to be subjected to heat exchange and cooling, and cooled ash powder is transported away through the ash suction tanker 6.

Claims

1. The utility model provides an Ou smelt stove sack ash collecting bin high temperature ash cooling device, includes the cooling device body, characterized by: the middle part of the cooling device body is in a cylindrical shape, the two ends of the cooling device body are in a conical shape, the two ends of the cooling device body are respectively provided with a sealing clapboard, ash conveying pipes are horizontally arranged at intervals between the sealing clapboards, adjacent ash conveying pipes are arranged in an equilateral triangle shape, the two ends of the cooling device body are respectively connected with an ash inlet pipe and an ash outlet pipe, the top surface of the cooling device body close to the ash inlet pipe is provided with a cooling medium inlet, the bottom surface of the cooling device body close to the ash outlet pipe is provided with a cooling device outlet, baffle plates are arranged in the cooling device body in an up-down staggered interval mode, the top surface or the bottom surface of each baffle plate is provided with an arc-shaped notch, and the arc-shaped height of each notch is 20-25% of the inner diameter of.