CN214665824U - Continuous external heating type flat plate drying equipment - Google Patents

Abstract

A continuous external heating type flat drying equipment, which consists of a base, a heating plate, a flue gas outlet, a feeding hopper, a chain plate supporting sprocket, a moisture outlet, a chain plate, a scraper, a heating chamber, a flue Air inlet, discharge screw, drying chamber shell, discharge chute, bearing, transmission sprocket drive shaft and transmission chain, a heating plate is laid above the heating chamber, a drying chamber is set above the heating plate, and one end at the top of the drying chamber Set up a feeding hopper; set a ring chain plate conveying mechanism in the drying chamber, the transmission shaft is installed on the drying chamber shell through bearings, the chain plate support sprocket is installed at both ends of the transmission shaft, and the transmission chain is installed on the chain plate support sprocket. Chain plates are installed on the transmission chain, and multiple scrapers perpendicular to the chain plates are alternately welded at appropriate distances on each chain plate, and the scrapers on two adjacent chain plates are staggered with the gaps; the material is discharged in the drying room A discharge chute is set below the mouth, and a discharge screw is installed in the discharge chute; a moisture outlet is set at the top of the drying chamber.

Description

Continuous external heating type flat plate drying equipment

Technical Field

The utility model relates to a drying equipment of granule or powdery material, especially a dull and stereotyped drying equipment of outer hot type of serialization.

Background

In the production process of chemical industry, food industry and the like, granular or powdery wet materials are often required to be dried, such as airflow drying, fluidized bed drying or fluidized bed drying equipment and the like, and because the drying medium of the drying equipment must be in direct contact with the materials to be dried, the drying medium pollutes the dried products and affects the quality of the products. For example, to dry wet powdered activated carbon, hot air is currently used as a drying medium, and airflow drying or fluidized bed drying equipment is adopted, so that air must be heated first, and because the heat conductivity coefficient of the air is small, the heating efficiency is low, the energy consumption is high, and meanwhile, impurities in the air are adsorbed by activated carbon, so that the adsorption performance of the activated carbon is reduced, and the activated carbon product is polluted; on the other hand, the industrial kiln generates a large amount of high-temperature flue gas, such as directly discharged to the atmosphere, which is not only a waste of heat energy, but also causes thermal pollution to the atmospheric environment. If the heat energy of the flue gas is used for drying the wet activated carbon after rinsing, the purposes of drying the wet carbon, realizing the utilization of the waste heat of the flue gas and reducing the heat pollution to the environment are achieved. The prior external heating type drying equipment using flue gas as a heat source is similar to a patent, such as the patent with the application number of 201820056159.9, namely 'continuous drying equipment for drying wet carbon by using flue gas waste heat', the continuous drying equipment is vertical drying equipment formed by overlapping a plurality of external heating drying disks, the continuous drying equipment has the defect that parts in a cylinder are troublesome to install and maintain, the diameter of the cylinder is not suitable to be made to be large, if the drying yield is large, the drying equipment needs to be made to be high, and the height of a factory building is required to be high. Based on the above background, the utility model discloses a continuous external heating type flat plate drying equipment.

SUMMERY OF THE UTILITY MODEL

A continuous outer hot type flat plate drying equipment, this drying equipment appearance is horizontal cuboid, it by base (1), hot plate (2), flue gas discharge port (3), loading hopper (4), rotatory scraper blade charging means (5), link joint supporting sprocket (6), moisture discharge port (7), link joint (8), scrape flitch (9), heating chamber (10), flue gas entry (11), ejection of compact spiral (12), drying chamber casing (13), blown down tank (14), bearing (15), driving sprocket (16) transmission shaft (17), drive chain (18) and heat accumulation firebrick post (19) constitute, a continuous outer hot type flat plate drying equipment, its constitutional features is such: a heating chamber (10) which is made of refractory bricks into a cuboid shape is laid above the heating chamber, and the heating plate (2) is made of stainless steel; a drying chamber is arranged above the heating plate, the length of the drying chamber is 15-20 m, the width of the drying chamber is 1.0-1.5 m, one end of the top of the drying chamber is provided with a feeding hopper (4), and a rotary scraper feeder (5) is arranged in the feeding hopper; set up the annular chain plate conveying mechanism of conveying material in the drying chamber, its structural feature is: a transmission shaft (17) is arranged between drying chamber shells (13) on two sides, the transmission shaft is installed on the drying chamber shells (13) through a bearing (15), chain plate supporting chain wheels (6) are installed at two ends of the transmission shaft (17), a transmission chain (18) is installed on the chain plate supporting chain wheel, chain plates (8) are installed on the transmission chain, a plurality of scraping plates (9) vertical to the chain plates are welded on each chain plate at proper intervals in an alternating mode, the gap between every two scraping plates is 8-13 cm, the length of each scraping plate is 10-15 cm, the width of each scraping plate is 5-8 cm, and the scraping plates on two adjacent chain plates are arranged in a staggered mode with the gaps; one end of one of the transmission shafts is provided with a transmission chain wheel (16), the transmission chain wheel is driven by a driving motor through a speed reducer through a chain to enable the chain plates (8) to do annular linear motion, a scraping plate on the chain plates can scrape and push materials to be dried into the drying chamber at a constant speed, the materials are gradually scraped and pushed towards the discharge port end of the drying chamber and play a role of stirring, and finally the materials fall into a discharge chute (14), the discharge chute (14) is arranged outside the heating chamber and below the discharge port of the drying chamber, a discharge screw (12) is arranged in the discharge chute, and the discharge screw is driven by the speed reducer through a speed regulating motor to perform continuous discharge; a moisture outlet (7) is arranged at the top of the drying chamber close to the charging hopper and is discharged to the outdoor atmosphere through a connecting pipeline; a flue gas outlet (3) is arranged at the end of the loading hopper of the heating chamber (10) and guides the flue gas to a chimney for emptying; a heat-insulating layer is arranged between a refractory brick at the bottom of the heating chamber and the base, the whole drying equipment is arranged on the base (1), and the base is built by common bricks or formed by pouring concrete. The shell and the heating plate of the drying chamber of the continuous external heating type flat plate drying equipment and the parts of the annular chain plate conveying mechanism in the drying chamber are processed by stainless steel. The utility model relates to a continuous external heating type flat plate drying device, which utilizes the waste heat of flue gas to indirectly heat materials through a heating plate, and the heated flue gas is not contacted with the materials, thereby avoiding the flue gas from polluting the materials; the drying equipment has the advantages that the drying area of the drying chamber per unit length is large, and more materials are stacked, so that the drying equipment has large drying yield.

Drawings

Fig. 1 is a schematic view of a sectional structure of a front vertical surface of a continuous external heating type flat plate drying device of the present invention, wherein 1 is a base, 2 is a heating plate, 3 is a flue gas discharge port, 4 is a hopper, 5 is a rotary scraper feeder, 6 is a chain plate supporting chain wheel, 7 is a moisture discharge port, 8 is a chain plate, 9 is a scraping plate, 10 is a heating chamber, 11 is a flue gas inlet, 12 is a discharge screw, 13 is a drying chamber housing, and 14 is a discharge chute; FIG. 2 is a schematic cross-sectional view of section A-A of FIG. 1, with 15 being a bearing, 16 being a drive sprocket, 17 being a drive shaft, 18 being a drive chain, and the remaining components being as described above; FIG. 3 is a schematic cross-sectional view of the cross-section B-B of FIG. 1, with the parts illustrated above; fig. 4 is a sectional view of the cross section C-C of fig. 1, and 19 is a heat accumulating refractory brick column, and the rest is described as above.

Detailed Description

A continuous external heating type flat plate drying equipment carries out drying operation like this, and the explanation is as follows in combination with the attached figure 1: high-temperature flue gas such as industrial kiln flue gas or activated tail gas of an activated carbon activation furnace and the like is mixed with air to be at a required temperature, then the mixed flue gas is introduced into the whole heating chamber (10) through a flue gas inlet (11), the material to be dried on the flue gas inlet is heated through a heating plate (2), so that the moisture is evaporated to achieve the purpose of drying, and then the mixed flue gas is guided to a chimney from a flue gas outlet (3) at the other end of the heating chamber to be emptied; adding a material to be dried into a charging hopper (4), starting a driving motor of a rotary scraper feeder (5), adding the raw material into drying equipment, starting a chain plate driving motor to enable a chain plate (8) to do annular linear motion, scraping the material onto a heating plate (2) of a drying chamber at a constant speed by a scraping plate on the chain plate, gradually scraping the material towards the discharge port end, gradually heating and drying the material, dropping the dried material into a discharge chute (14) from the discharge port, and then driving a discharge screw (12) by a speed regulating motor through a speed reducer to continuously discharge; according to the sampling detection result of the moisture content of the material output by the discharging screw, the proper rotating speed of a chain plate driving motor is adjusted and determined so as to enable the moisture content of the dried material to meet the requirement; the steam generated in the process of heating and drying the materials is collected to the moisture exhaust port (7) and is guided to the outdoor for evacuation through the connecting pipeline, and thus, the drying operation of the materials to be dried is completed.

Claims (1)

1. a continuous external heating type flat drying equipment, it is characterized in that: the external shape of the drying equipment is a horizontal cuboid, and the drying equipment is composed of a base (1), a heating plate (2), a flue gas outlet (3), Feeding hopper (4), rotary scraper feeder (5), chain plate support sprocket (6), moisture outlet (7), chain plate (8), scraper plate (9), heating chamber (10) , flue gas inlet (11), discharge screw (12), drying chamber shell (13), discharge chute (14), bearing (15), transmission sprocket (16), transmission shaft (17), transmission The chain (18) and the regenerative refractory brick column (19) are formed, a rectangular heating chamber (10) is built with refractory bricks, a heating plate (2) is laid above the heating chamber, and the heating plate is made of stainless steel; A drying chamber is set above the plate, the length of the drying chamber is 15-20 meters, the width is 1.0-1.5 meters, a feeding hopper (4) is set at one end of the top of the drying chamber, and a rotary scraper feeder (5) is set in the feeding hopper; An annular chain plate conveying mechanism for conveying materials is arranged indoors, a transmission shaft (17) is arranged between the drying chamber shells (13) on both sides, and the transmission shaft is installed on the drying chamber shell (13) through bearings (15). Chain plate support sprockets (6) are installed at both ends of the transmission shaft (17), drive chains (18) are installed on the chain plate support sprockets, and chain plates (8) are installed on the transmission chain, and each chain plate is properly spaced A plurality of scrapers (9) which are alternately welded and perpendicular to the chain plates, the gap between the two scrapers is 8 to 13 cm, the length of the scrapers is 10 to 15 cm, and the width is 5 to 8 cm. The scrapers on the two adjacent chain plates are arranged in a staggered manner with the gaps; a drive sprocket (16) is installed at one end of one of the drive shafts; a discharge chute (14) is set outside the heating chamber and below the discharge port of the drying chamber, A discharge screw (12) is installed in the discharge chute; a moisture discharge port (7) is set at the top of the drying chamber near the feeding hopper; a flue gas discharge port (3) is set at the end of the feeding hopper of the heating chamber (10). ; The whole drying equipment is installed on the base (1), and the base is made of ordinary bricks or concrete.

Images