Treatment system for viscous waste glue

Abstract

The utility model discloses a treatment system for viscous waste glue. The treatment system comprises a waste glue feeding hopper, a mixing and shearing tank, a boiler water tank, a calcium hydroxide storage tank, a tail gas collecting device, a heat exchanger and a rotary kiln. The waste glue feeding hopper is fixed above a feeding hole of the mixing and shearing tank; a shearing blade and a scraper are arranged in the mixing and shearing tank, and an outlet of the mixing and shearing tank is connected with a filtering device; an outlet of the boiler water tank and an outlet of the calcium hydroxide storage tank are both connected with a feeding hole of the mixing and shearing tank; an inlet of the tail gas collecting device is connected with a waste gas outlet of the mixing and shearing tank; the heat exchanger is arranged between an outlet of the tail gas collecting device and a heat source inlet of the rotary kiln; and a feeding hole of the rotary kiln is connected with an intercepted object outlet of the filtering device. The waste glue burning device can effectively avoid the risk of flash burning during burning treatment of waste glue.

Description

Technical Field

[0001] The utility model relates to a disposal system for viscous waste glue. Background Art

[0002] Glue is widely used in packaging, manufacturing, and repair, resulting in high demand. During the glue production process, a certain amount of waste glue is generated due to process fluctuations, side reactions, and solidification. Since this waste glue cannot be recycled, its disposal is a significant concern. For waste glue that cannot be reused, the hazardous waste disposal industry typically uses incineration. Due to its high viscosity, waste glue cannot be pumped into incinerators using conventional methods. Currently, the waste glue is packaged into small packages and fed into the incinerator in batches. However, waste glue contains a variety of organic compounds with a low flash point. Even small amounts of waste glue are susceptible to deflagration, resulting in incomplete combustion and the production of large amounts of carbon monoxide, which affects flue gas emission standards. The large fluctuations in the calorific value of waste glue can affect temperature control during incineration. Components in the waste glue can form melts at high temperatures, easily forming rings on the walls of the rotary kiln, affecting material flow and heat transfer. Furthermore, the high viscosity of waste glue makes pipe transportation and segmentation difficult during incineration, hindering operational efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a disposal system for viscous waste glue, which can effectively avoid the risk of flash fire of the waste glue during incineration.

[0004] The purpose of the utility model is achieved as follows: a viscous waste glue disposal system, including a waste glue feed hopper, a mixing and shearing tank, a boiler water tank, a calcium hydroxide storage tank, an exhaust gas collection device, a heat exchanger and a rotary kiln; wherein,

[0005] The waste glue feed hopper is fixed above the feed port of the mixing and shearing tank;

[0006] The mixing and shearing tank is provided with a shearing blade and a scraper, and the outlet of the mixing and shearing tank is connected to a filtering device;

[0007] The outlet of the boiler water tank and the outlet of the calcium hydroxide storage tank are both connected to the feed port of the mixing shear tank;

[0008] The inlet of the tail gas collection device is connected to the exhaust gas outlet of the mixing and shearing tank;

[0009] The heat exchanger is arranged between the outlet of the tail gas collecting device and the heat source inlet of the rotary kiln;

[0010] The feed inlet of the rotary kiln is connected to the interception outlet of the filtering device.

[0011] In the above-mentioned viscous waste glue disposal system, the permeate outlet of the filtering device is connected to a waste liquid collection tank.

[0012] The characteristics of the viscous waste glue disposal system of the utility model are:

[0013] 1. Reacting waste glue with calcium hydroxide solution in a mixing and shearing tank can decompose harmful components in the waste glue, reduce the viscosity of the waste glue, facilitate segmentation and transportation, and solve the problem of easy blockage of waste glue pipeline transportation;

[0014] 2. When the waste glue reacts with the calcium hydroxide solution in the mixing and shearing tank, the organic components in the waste glue are released by heating the mixing and shearing tank, which can increase the flash point of the waste glue, avoid the risk of explosion during the incineration of the waste glue, and make the waste glue safer to incinerate;

[0015] 3. By collecting the waste gas generated when waste glue and calcium hydroxide solution react in the mixing shear tank and then incinerating it after heat exchange, the problems existing in the incineration of waste glue can be solved under low energy consumption (low temperature heating), and the processing efficiency and capacity of the incineration process can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a principle structural diagram of the viscous waste glue disposal system of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] See also Figure 1 The viscous waste glue disposal system of the present invention comprises a waste glue feed hopper 2, a mixing and shearing tank 3, a boiler water tank 4, a calcium hydroxide storage tank 5, an exhaust gas collection device 6, a waste liquid collection tank 7, a heat exchanger 8 and a rotary kiln 9; wherein,

[0019] The waste glue feed hopper 2 is connected to the waste glue 1 and fixed above the feed port of the mixing and shearing tank 3;

[0020] The mixing and shearing tank 3 is provided with a shearing blade and a scraper, and the outlet of the mixing and shearing tank 3 is connected to the filtering device 30;

[0021] The outlet of the boiler water tank 4 and the outlet of the calcium hydroxide storage tank 5 are both connected to the feed port of the mixing and shearing tank 3;

[0022] The inlet of the tail gas collecting device 6 is connected to the exhaust gas outlet of the mixing and shearing tank 3;

[0023] The waste liquid collection tank 7 is connected to the permeate outlet of the filter device 30;

[0024] The heat exchanger 8 is provided between the outlet of the tail gas collecting device 6 and the heat source inlet of the rotary kiln 9;

[0025] The feed port of the rotary kiln 9 is connected to the interception outlet (waste glue block) of the filtering device 30.

[0026] The working process of the viscous waste glue disposal system of the utility model is as follows:

[0027] S1. First, the low-temperature boiler water of 70 to 85 ° C in the boiler water tank 4 and the calcium hydroxide in the calcium hydroxide storage tank 5 are added to the mixing shear tank 3 to prepare a calcium hydroxide solution; the concentration of calcium hydroxide and low-temperature boiler water is 5 to 10%; the temperature of the mixing shear tank 3 is maintained at 70 to 85 ° C, and then the waste glue 1 is added to the mixing shear tank 3 through the waste glue feed hopper 2, and the volume ratio of the waste glue 1 to the calcium hydroxide solution is 1: 2 to 1: 4;

[0028] S2. The waste glue in the mixing and shearing tank 3 is soaked in a calcium hydroxide solution for 0.5h for sufficient reaction, and then the waste glue is sheared by a shear blade for 1 to 1.5h to disperse the waste glue into small pieces 10, and then stirred until the surface of the waste glue small pieces 10 is non-sticky; the exhaust gas generated during the reaction is collected by the exhaust gas collection device 6, and then sent to the heat exchanger 7 for heat exchange, and the heated exhaust gas is sent to the rotary kiln 9 for incineration;

[0029] S3. The waste glue pieces in the mixing and shearing tank 3 are separated into solid and liquid by a filtering device 30 to form waste glue pieces 8 and waste liquid. The waste glue pieces 10 are collected and sent to the rotary kiln 9 for incineration; the waste liquid flows into the waste liquid collection tank 7.

[0030] The viscous waste glue disposal system of the utility model has the following advantages: the treated waste glue small pieces 10 have no odor, no surface stickiness, and the flash point meets the incineration requirements of the rotary kiln 9.

[0031] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A system for treating viscous waste glue, comprising a waste glue feed hopper, a mixing and shearing tank, a boiler water tank, a calcium hydroxide storage tank, an exhaust gas collection device, a heat exchanger and a rotary kiln; characterized in that: The waste glue feed hopper is fixed above the feed port of the mixing and shearing tank; The mixing and shearing tank is provided with a shearing blade and a scraper, and the outlet of the mixing and shearing tank is connected to a filtering device; The outlet of the boiler water tank and the outlet of the calcium hydroxide storage tank are both connected to the feed port of the mixing shear tank; The inlet of the tail gas collection device is connected to the exhaust gas outlet of the mixing and shearing tank; The heat exchanger is arranged between the outlet of the tail gas collecting device and the heat source inlet of the rotary kiln; The feed inlet of the rotary kiln is connected to the interception outlet of the filtering device.

2. The viscous waste glue disposal system according to claim 1, characterized in that: The permeate outlet of the filter device is connected to a waste liquid collection tank.

Images