CN216998201U

CN216998201U - Self-sealing feeding and exhausting device of gypsum steam drying calcining kiln

Info

Publication number: CN216998201U
Application number: CN202123297360.7U
Authority: CN
Inventors: 王立明; 兰正福
Original assignee: Ningxia Bode Gypsum Research Institute Ltd
Current assignee: Ningxia Bode Gypsum Research Institute Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-19
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a self-sealing feeding and exhausting device of a gypsum steam drying and calcining kiln, which comprises a self-sealing feeder, a water vapor channel, a heating sleeve, an air distribution pipe, an adjusting valve and a tail gas exhaust pipe, wherein the self-sealing feeder consists of a transmission device, a tubular spiral shell and a spiral belt conveying section, the outside of the spiral belt conveying section is provided with a U-shaped shell, an opening at the upper part of the U-shaped shell is communicated with the water vapor channel, and a spiral shaft and a spiral belt connected with the spiral shaft are arranged in the U-shaped shell; be equipped with the striker plate in the steam passageway, the striker plate links to each other with the U type casing of spiral shell area transport section, and the heating jacket lower part is equipped with hot-blast import, and heating jacket upper portion is equipped with the air distribution pipe, and the air distribution pipe communicates with tail gas exhaust pipe, is equipped with the governing valve on the air distribution pipe, tail gas exhaust pipe and steam passageway intercommunication. The hot air is converged into the tail gas exhaust pipe through the air distribution pipe and the regulating valve to improve the temperature of the tail gas, the tail gas is prevented from being condensed, and the problem of water vapor discharge of a feeder of a kiln head feeding system of a steam drying calcining kiln is well solved.

Description

Self-sealing feeding and exhausting device of gypsum steam drying calcining kiln

Technical Field

The utility model relates to the field of gypsum calcining equipment, in particular to a self-sealing feeding and steam discharging device of a gypsum steam drying and calcining kiln.

Background

In recent years, the gypsum industry in China is rapidly developed, the types of gypsum production raw materials are gradually increased, and industrial byproduct gypsum raw materials become main sources for producing gypsum products. The steam drying and calcining kiln is used as a main device for drying or calcining the byproduct gypsum, and is increasingly applied to the drying and calcining production of the byproduct gypsum. The steam drying calcining kiln is low-temperature drying calcining, the tail gas temperature is generally low when steam is exhausted from the feeding end, and dew condensation is easy to occur in a steam exhaust channel, a pipeline and a dust collector; when water vapor is discharged, a large amount of wet dust can be sucked and gradually accumulated in the steam discharge channel to block the channel, so that the water vapor discharge is influenced; meanwhile, the feeder is also arranged at the kiln head, and a feed inlet of the feeder can enter cold air, so that the temperature of water vapor and tail gas is reduced, and the operation of the system is influenced. Therefore, when the steam exhaust of the head of the steam drying calcining kiln is adopted, the feeding machine is prevented from entering cold air; the wet materials sucked in when the water vapor is discharged can be prevented from being conveyed away and cannot be accumulated to gradually reduce the channel space; the operation of pipelines, dust collectors and the like is prevented from being influenced by the excessively low temperature and the condensation of the tail gas.

SUMMERY OF THE UTILITY MODEL

The utility model provides a self-sealing feeding and steam discharging device of a gypsum steam drying calcining kiln, aiming at the problems in the prior art, when the device is applied, a reasonable feeder structure is utilized to form a self-sealing effect, meanwhile, the communication between the feeder and a water vapor channel is utilized to enable sucked wet materials to fall into a feeder shell to be fed into the kiln, a heating sleeve is arranged outside the water vapor channel to be introduced with hot air to heat the water vapor in the water vapor channel, the hot air is converged into a tail gas exhaust pipe through a distributing pipe and an adjusting valve to improve the temperature of the tail gas, the tail gas is prevented from being condensed, and the problem of discharging the water vapor of the feeder of a feeding system at the kiln head of the steam drying calcining kiln is well solved.

The utility model is realized by the following technical scheme:

a self-sealing feeding and steam discharging device of a gypsum steam drying and calcining kiln comprises a self-sealing feeding machine, a water vapor channel, a heating sleeve, a wind distribution pipe, a regulating valve and a tail gas exhaust pipe, wherein the self-sealing feeding machine consists of a transmission device, a tubular spiral shell and a spiral belt conveying section, the tubular spiral shell consists of a round tubular shell, a feeding hole formed in the shell, a spiral shaft and spiral blades arranged in the round tubular shell, the outside of the spiral belt conveying section is arranged to be a U-shaped shell, an opening in the upper part of the U-shaped shell is communicated with the water vapor channel, and the U-shaped shell is internally provided with the spiral shaft and a spiral belt connected with the spiral shaft; the steam passage is set to be cylindrical, a baffle plate is arranged in the steam passage and is connected with a U-shaped shell of the spiral belt conveying section, the baffle plates arranged on two sides of the upper portion of the U-shaped shell are connected with the steam passage, the upper portion of the steam passage is connected and communicated with the tail gas exhaust pipe, the heating sleeve is arranged outside the steam passage and is a concentric cylinder body with the steam passage, a hot air inlet is formed in the lower portion of the heating sleeve, an air distribution pipe is arranged on the upper portion of the heating sleeve and is communicated with the tail gas exhaust pipe, an adjusting valve is arranged on the air distribution pipe and is communicated with the steam passage, the heating sleeve is communicated with the tail gas exhaust pipe through the air distribution pipe and the adjusting valve, and the temperature of the tail gas is adjusted by adjusting the amount of the distributed hot air through the adjusting valve.

Furthermore, a gypsum steam stoving calcining kiln self sealss feed exhaust apparatus, tubular spiral shell and spiral shell area transport section are constituteed, and the contained angle between striker plate and the U type shell upper surface is greater than 45 degrees.

Furthermore, a gypsum steam drying calcining kiln self-sealing feeding steam exhaust device, hot air is introduced into the heating sleeve, and the shell is provided with heat preservation cotton.

Furthermore, the self-sealing feeding steam exhaust device of the gypsum steam drying and calcining kiln is characterized in that the regulating valve is an automatic regulating valve which is electrically controlled.

At present, when the steam drying and calcining kiln adopts kiln head steam exhaust, a feeder must be prevented from entering cold air; the phenomenon that wet materials sucked in when water vapor is discharged can be conveyed away and cannot be accumulated to gradually reduce the channel space is avoided; the self-sealing feeding steam exhaust device of the gypsum steam drying and calcining kiln comprises a self-sealing feeder, a water vapor channel, a heating sleeve, a wind distribution pipe, a hot air regulating valve and a tail gas exhaust pipe; the self-sealing feeder consists of a transmission device, a tubular spiral shell and a spiral belt conveying section, wherein the material is self-sealed in the tubular spiral shell by using the material and spiral blades after entering the feeder, cold air is prevented from entering the calcining kiln from a feed inlet, the shell of the spiral belt conveying section is U-shaped, the upper opening of the U-shaped shell is opened, two sides of the upper part of the shell are provided with baffle plates which are connected with a water vapor channel, gypsum entering the water vapor channel along with water vapor and gypsum falling from a tail gas exhaust pipe fall into the spiral belt shell, and the spiral belt conveying section is arranged in the water vapor channel; the water vapor channel is cylindrical, a spiral belt conveying section of the self-sealing feeding machine is fixed at the lower part in the water vapor channel, and water vapor enters the water vapor channel and is discharged from a tail gas exhaust port arranged on the water vapor channel; a heating sleeve is arranged on the shell outside the water vapor channel, hot air enters the heating sleeve from a hot air inlet arranged at the lower part of the heating sleeve to heat the water vapor channel, and the hot air is distributed into a tail gas exhaust pipe through a wind distribution pipe and a regulating valve arranged at the upper part of the heating sleeve, so that the temperature of the tail gas is ensured to be 130 ℃, the water vapor discharge pipeline and a subsequent dust collector system are ensured not to condense, and the water vapor is normally discharged; the system well solves the problems that a feed inlet of a feeding and exhausting system of a gypsum steam drying and calcining kiln seals cold air and water vapor is discharged after calcining by a dryer, the problem that wet gypsum sucked along with the discharge of the water vapor is easy to block a water vapor channel is solved by utilizing an opening shell of a spiral belt conveying section, the temperature of the water vapor is adjusted by utilizing hot air distribution, and the problem that low-temperature water vapor is easy to condense and adhere to a pipeline and a dust collector is solved.

In summary, the following beneficial effects of the utility model are:

the utility model relates to a self-sealing feeding and steam discharging device of a gypsum steam drying calcining kiln, which utilizes a reasonable feeder structure to form a self-sealing effect, simultaneously utilizes the communication between a feeder and a water vapor channel to enable sucked wet materials to fall into a feeder shell to be fed into the kiln, arranges a heating sleeve outside the water vapor channel to heat water vapor in the water vapor channel, and collects the hot air into a tail gas exhaust pipe through a distributing pipe and an adjusting valve to improve the temperature of the tail gas, thereby avoiding the condensation of the tail gas and well solving the problem of the discharge of the water vapor of the feeder of a feeding system at the kiln head of the steam drying calcining kiln.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic structural view of the self-sealing tubular spiral section of the present invention.

FIG. 3 is a schematic cross-sectional view of the water vapor passage, heating jacket, and spiral belt conveying section of the present invention.

Reference numbers and corresponding part names in the drawings:

1-transmission device, 2-self-sealing feeding machine, 3-feeding port, 4-heating jacket, 5-air distribution pipe, 6-regulating valve, 7-tail gas exhaust pipe, 8-spiral blade, 9-spiral belt conveying section, 10-hot air inlet, 11-spiral shaft, 12-tubular spiral shell, 13-steam channel, 14-material baffle and 15-U-shaped shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Examples

As shown in fig. 1-3, a self-sealing feeding and exhausting device for a gypsum steam drying and calcining kiln comprises a self-sealing feeder 2, a water vapor channel 13, a heating jacket 4, an air distribution pipe 5, an adjusting valve 6 and a tail gas exhaust pipe 7, wherein the self-sealing feeder 2 comprises a transmission device 1, a tubular spiral shell 12 and a spiral belt conveying section 9, the tubular spiral shell 12 comprises a circular tubular shell, a feeding port 3 arranged on the circular tubular shell, a spiral shaft 11 arranged in the circular tubular shell and spiral blades 8, the outside of the spiral belt conveying section 9 is provided with a U-shaped shell 15, the upper opening of the U-shaped shell 15 is communicated with the water vapor channel 13, the water vapor channel 13 is cylindrical, a material baffle 14 is arranged in the water vapor channel 13, the material baffle 14 is connected with the U-shaped shell 15 of the spiral belt conveying section 9, the material baffle 14 arranged on two sides of the upper part of the U-shaped shell 15 is connected with the water vapor channel 13, steam passageway 13 upper portion is connected and communicates with tail gas exhaust pipe 7, heating jacket 4 sets up in steam passageway 13 outside, heating jacket 4 is concentric barrel with steam passageway 13, heating jacket 4 lower part is equipped with hot-blast import 10, heating jacket 4 upper portion is equipped with air distribution pipe 5, air distribution pipe 5 and tail gas exhaust pipe 7 intercommunication, be equipped with governing valve 6 on the air distribution pipe 5, tail gas exhaust pipe 7 and steam passageway 13 intercommunication, heating jacket 4 is through air distribution pipe 5 and governing valve 6 and tail gas exhaust pipe 7 intercommunication.

Specifically, a gypsum steam stoving calcining kiln self sealss feed steam exhaust device, tubular spiral shell 12 and spiral shell area conveying section 9 are constituteed, the contained angle between striker plate 14 and the U type 15 upper surface of shell is greater than 45 degrees.

Concretely, a gypsum steam stoving calcining kiln self sealss feed steam exhaust device, it is hot-blast to let in the heating jacket 4, and the shell is equipped with the heat preservation cotton.

In particular to a self-sealing feeding steam exhaust device of a gypsum steam drying and calcining kiln, wherein an adjusting valve 6 is set as an automatic adjusting valve controlled electrically.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The self-sealing feeding and steam discharging device of the gypsum steam drying calcining kiln is characterized by comprising a self-sealing feeding machine (2), a water vapor channel (13), a heating sleeve (4), a air distribution pipe (5), an adjusting valve (6) and a tail gas exhaust pipe (7), wherein the self-sealing feeding machine (2) consists of a transmission device (1), a tubular spiral shell (12) and a spiral belt conveying section (9), the tubular spiral shell (12) consists of a circular tube shell, a feeding port (3) arranged on the circular tube shell, a spiral shaft (11) arranged in the circular tube shell and spiral blades (8), the outside of the spiral belt conveying section (9) is set to be a U-shaped shell (15), an upper opening of the U-shaped shell (15) is communicated with the water vapor channel (13), the water vapor channel (13) is set to be cylindrical, a material baffle plate (14) is arranged in the water vapor channel (13), the material baffle (14) is connected with a U-shaped shell (15) of the spiral belt conveying section (9), the striker plates (14) arranged on two sides of the upper part of the U-shaped shell (15) are connected with the water vapor channel (13), the upper part of the water vapor channel (13) is connected and communicated with the tail gas exhaust pipe (7), the heating sleeve (4) is arranged outside the water vapor channel (13), the heating jacket (4) and the water vapor channel (13) are concentric cylinders, the lower part of the heating jacket (4) is provided with a hot air inlet (10), an air distribution pipe (5) is arranged at the upper part of the heating sleeve (4), the air distribution pipe (5) is communicated with a tail gas exhaust pipe (7), the air distribution pipe (5) is provided with an adjusting valve (6), the tail gas exhaust pipe (7) is communicated with a water vapor channel (13), the heating jacket (4) is communicated with a tail gas exhaust pipe (7) through an air distribution pipe (5) and an adjusting valve (6).

2. The self-sealing feeding and exhausting device of a gypsum steam drying and calcining kiln as claimed in claim 1, wherein the tubular spiral shell (12) and the spiral belt conveying section (9) are formed, and the included angle between the striker plate (14) and the upper surface of the U-shaped shell (15) is more than 45 degrees.

3. The self-sealing feeding and exhausting device of a gypsum steam drying and calcining kiln as claimed in claim 1, wherein the heating jacket (4) is internally provided with hot air, and the shell is provided with heat insulation cotton.

4. A self-sealing feeding and exhausting device for a gypsum steam drying and calcining kiln as claimed in claim 1, characterized in that the regulating valve (6) is arranged as an electrically controlled automatic regulating valve.