CN204881083U - A drying system that is used for various sand production - Google Patents

Abstract

The utility model provides a drying system for the production of colored sand, which has a simple structure and can effectively improve the dryness of artificial colored sand; it includes a primary drying system for primary drying of colored sand, a final drying system and a Send the colored sand dried by the primary drying system to the conveying pipe in the final drying system, wherein the primary drying system includes a hot air outlet, a flue gas pipe communicating with the hot air outlet, a screw propeller The device, the end face flange arranged between the flue gas pipe and the screw propeller, the dryer drum, the support arranged on the lower end of the dryer drum, and the support arranged on the dryer drum and the support The motor and the support wheel between the seats; this scheme uses the liquid nitrogen storage tank to change the original drying medium from air to nitrogen, which reduces the moisture content; at the same time, the use of electric heating furnace can effectively improve the heating medium. The heating temperature ensures the heating effect.

Description

A drying system for colored sand production

technical field

The utility model relates to the technical field of colored sand processing equipment, in particular to a drying system for the production of colored sand.

Background technique

In the production process of colored sand, the drying of colored sand is a very important procedure. In the drying process of colored sand, tumble dryers are mostly used. The working principle of the tumble dryer is to put the colored sand into the drum of the dryer from the feed port, and with the rotation of the drum, the The heated air is blown inside to take away the moisture contained in the colored sand to achieve the purpose of drying the sand; however, the moisture content of the above-mentioned colored sand after drying will be greatly increased after a period of storage or transportation. Therefore, it is particularly important for how to find a reliable technical means that can effectively dry colored sand.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a drying system with a simple structure that can effectively improve the dryness of artificial colored sand.

In order to achieve the above purpose, the technical solution provided by the utility model is: a drying system for the production of colored sand, including a primary drying system for primary drying of colored sand, a final drying system and a The colored sand dried by the primary drying system is sent to the conveying pipe in the final drying system, wherein the primary drying system includes a hot air outlet, a flue gas pipe communicating with the hot air outlet, a screw propeller, The end face flange arranged between the flue gas pipe and the screw propeller, the dryer drum, the support arranged on the lower end of the dryer drum, and the support arranged between the dryer drum and the support Between the motor and the supporting wheel; the final drying system includes a liquid nitrogen storage tank, a heating furnace, and a drying tank connected in sequence through pipelines, wherein the drying tank is provided with a gas distribution pipe, and the top of the drying tank is connected by a pipeline There is a vacuum pump, and the top and bottom of the drying tank are respectively provided with a feed port and a discharge port.

Further, the upper side of the drum of the dryer is also provided with a humidity sensor for detecting the humidity inside.

This solution uses liquid nitrogen storage tanks to change the original drying medium from air to nitrogen, which reduces the moisture content; at the same time, the use of electric heating furnaces can effectively increase the heating temperature of the heating medium and ensure the heating effect; In addition, the air distribution pipe in the drying tank is set so that the colored sand in the drying tank is heated evenly, which avoids the traditional phenomenon that the moist air is absorbed by the colored sand located in the upper part due to heating only from the bottom, and ensures a more uniform heating.

Description of drawings

Fig. 1 is a schematic diagram of the principle structure of the utility model.

Detailed ways

Below in conjunction with specific embodiment the utility model is further described:

Referring to Figure 1, a drying system for the production of colored sand described in this embodiment includes a primary drying system 100 for primary drying of colored sand, a final drying system 200 and a drying system for The colored sand dried by the primary drying system 100 is sent to the conveying pipe 11 in the final drying system 200, wherein the primary drying system 100 includes a hot air outlet 1, a flue gas pipe 2 communicating with the hot air outlet 1, a screw propulsion 6, the end flange 4 arranged between the flue gas pipe 2 and the screw propeller 6, the dryer drum 7, the support 3 arranged on the bottom end of the dryer drum 7 and the The motor 10 and the supporting wheel 11 between the drum 7 and the support 3. The above-mentioned final drying system 200 includes a liquid nitrogen storage tank 12, a heating furnace 13, and a drying tank 15 connected in sequence through pipelines, wherein the drying tank 15 is provided with an air distribution pipe 16, and the top of the drying tank 15 is connected with a vacuum pump 14 through a pipeline. The top and bottom of the tank 15 are also provided with a feed port 17 and a discharge port 18, respectively.

At the same time, in order to detect the humidity of the colored sand in the dryer drum 7 in real time, the upper side of the dryer drum 7 in this solution is also provided with a humidity sensor 8 for detecting the humidity inside.

The implementation examples described above are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model, so all changes made according to the shape and principle of the present utility model should be covered by the scope of the present utility model. within the scope of protection.

Claims (2)

1. the drying system produced for color sand, it is characterized in that: comprise the elementary drying system (100) for carrying out elementary drying to color sand, final stage drying system (200) and for will be fed through the carrier pipe (11) in described final stage drying system (200) through the dried color sand of described elementary drying system (100), wherein said elementary drying system (100) comprises hot gas air outlet (1), the fume pipe (2) communicated with this hot gas air outlet (1), spiral propeller (6), be arranged at the end flanges (4) between described fume pipe (2) and spiral propeller (6), drying machine drum (7), be arranged at the bearing (3) on bottom, this drying machine drum (7) below and the motor (10) be arranged between described drying machine drum (7) and bearing (3) and support roller (11), described final stage drying system (200) comprises the liquid nitrogen storage tank (12), heating furnace (13) and the drying chamber (15) that are connected successively by pipeline, gas distribution pipe (16) is provided with in wherein said drying chamber (15), the top of described drying chamber (15) is connected with vavuum pump (14) by pipeline, and the top of described drying chamber (15) and bottom are also respectively arranged with charging aperture (17) and discharging opening (18).

2. a kind of drying system produced for color sand according to claim 1, is characterized in that: the upside of described drying machine drum (7) is also provided with the humidity sensor (8) for detecting its humidity.