An on-line glue heating device

Abstract

The utility model discloses a kind of glue liquid online heating devices, including injector, the injector includes upper right part's steam inlet, left middle part's glue liquid inlet and lower part's discharge port, steam pipeline is communicated with steam inlet, for importing heating medium;Glue liquid feeding pipeline is communicated with glue liquid inlet, for conveying high viscosity glue liquid to be handled;Discharge pipeline is communicated with discharge port, for discharging mixed glue liquid after heating.The utility model has the beneficial effects that: it is suitable for high viscosity glue liquid with viscosity not more than 100,000 cp, the structure of overall device is simple and reasonable, and it is not easy to be blocked.

Description

Technical Field

[0001] This utility model relates to the field of heating technology for food industry materials, and in particular to an online heating device for adhesive liquid. Background Technology

[0002] Locust bean gum (E410) is a natural polysaccharide colloid extracted from the endosperm of locust tree seeds, with galactomannan as its main component. This colloid has poor solubility in cold water and requires heating to above 80°C for full hydration, forming a high-viscosity, clear solution. Its greatest technological advantage lies in its excellent synergistic effect: when combined with k-carrageenan, it forms a strong, thermally reversible elastic gel, significantly improving gel strength and water retention; when synergistic with xanthan gum, it produces a high-viscosity or weak gel structure, providing excellent suspension stability and a refreshing mouthfeel. This synergy makes it an indispensable thickener and stabilizer in dairy products (such as yogurt and ice cream melt preventers), meat products, sauces, candies (especially gummies), and beverages. Locust bean gum has good acid and alkali resistance and strong water retention. Although it cannot form a gel when used alone, it can effectively improve food texture (such as providing a smooth, creamy feel) at low concentrations and is widely used in gluten-free foods. As a recognized safe food additive, it poses no health risks when used in normal amounts and is one of the key natural colloids used in the food industry to achieve thickening, stabilization, gelation, and texture optimization.

[0003] In existing technologies, the production steps for locust bean gum are: soaking, boiling, filtering, extraction, pressing, and pulverizing and drying. The boiling process often uses plate heat exchangers for heating, but this equipment has the following drawbacks when processing high-viscosity colloids: 1) The heat transfer efficiency is low under large temperature difference conditions and has high requirements for colloidal viscosity. It is usually suitable for fluids with low viscosity. 2) It is highly susceptible to clogging due to the adhesion and accumulation of colloids. This leads to frequent shutdowns for cleaning of plate heat exchangers, and the entire plate bundle must be disassembled for inspection and cleaning, which is cumbersome, time-consuming, and seriously affects production continuity and efficiency.

[0004] In summary, especially for high-viscosity adhesives, this invention designs an online heating device for adhesives that can overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an online heating device for adhesive liquid.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An online heating device for adhesive liquid includes a sprayer. The injector includes a steam inlet at the upper right, a glue inlet at the middle left, and a discharge port at the bottom. The steam pipe is connected to the steam inlet and is used to introduce the heating medium; The adhesive feed pipe is connected to the adhesive inlet and is used to transport the high-viscosity adhesive to be processed. The discharge pipe is connected to the discharge port and is used to discharge the mixed and heated adhesive liquid.

[0007] As a further preferred embodiment, the injector is provided with a steam distributor, and the steam distributor is provided with injection holes.

[0008] As a further preferred embodiment, the adhesive feed pipe is provided with a rotor pump and a flow meter in sequence, and also includes a regulating valve located between the rotor pump and the flow meter; The rotary pump provides power for the delivery of adhesive liquid, the regulating valve is used to regulate the flow rate of adhesive liquid, and the flow meter monitors and provides feedback on the flow rate data in real time.

[0009] As a further preferred embodiment, a steam regulating valve is provided on the steam pipeline to precisely control the amount and pressure of steam entering the ejector.

[0010] As a further preferred embodiment, the discharge pipe is equipped with a glue thermometer and an emulsification pump; the thermometer is used to monitor the temperature of the glue after heating, and the emulsification pump further homogenizes and emulsifies the glue to improve product stability.

[0011] As a further preferred embodiment, the injector is installed vertically, and the length of the straight pipe section connecting its outlet and the emulsification pump inlet is not less than 0.5 meters.

[0012] This utility model has the following beneficial effects: 1) The online heating device for adhesives is suitable for high-viscosity adhesives with a viscosity not exceeding 100,000 cp.

[0013] 2) The overall structure of the device is simple and reasonable, which can adapt to high viscosity adhesive conditions, achieve continuous and stable operation, is not prone to clogging, has high heating efficiency, and low maintenance cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an online heating device for adhesive liquid according to the present invention; Figure 2 This is a schematic diagram of the injector structure in an online adhesive heating device according to this utility model; Figure 3 This is a partially enlarged schematic diagram of the injector A in an online adhesive heating device of this utility model; Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Referring to the figure, this utility model provides an online heating device for adhesive liquid.

[0017] Example 1 An online heating device for adhesive liquid, comprising: The injector 11 includes a steam inlet 2 at the upper right, a glue inlet 1 at the middle left, and a discharge port 3 at the lower part. Steam pipe 21 is connected to steam inlet 2 and is used to introduce heating medium; Adhesive feed pipe 22 is connected to adhesive inlet 1 and is used to transport high-viscosity adhesive to be processed. The discharge pipe 23 is connected to the discharge port 3 and is used to discharge the mixed and heated adhesive liquid.

[0018] In this embodiment, the online heating device for adhesives addresses the problem of high-viscosity adhesives, which have poor heat conduction and flowability, making them prone to clogging due to adhesion and accumulation. This device significantly improves the clogging problem by optimizing pipeline connections.

[0019] The three ports of the ejector 11 have strictly corresponding fluid type and flow direction requirements: the upper port is the steam inlet 2, specifically for receiving high-temperature steam; the middle port is the adhesive inlet 1, used to input the high-viscosity adhesive to be heated; and the lower port is the discharge port 3, used to discharge the mixed and heated adhesive. Incorrect port connections will lead to serious operational malfunctions or even equipment damage. For example, if steam is mistakenly connected to the adhesive inlet or discharge port, the internal steam distributor may burst due to pressure shock or structural incompatibility; conversely, if adhesive is mistakenly connected to the steam inlet or the discharge port is mistakenly connected as feed, it may cause abnormal internal system pressure, fluid backflow, and blockage risks.

[0020] In this embodiment, the injector is used for online continuous heating of high-viscosity adhesives (such as locust bean gum). When correctly connected, the steam and adhesive mix efficiently within the injector, achieving rapid heating and effectively avoiding adhesion and clogging problems common in traditional heat exchange methods. The interface design not only ensures operational safety and heat transfer efficiency but also reduces the risk of equipment failure and production interruption due to incorrect connections.

[0021] The ejector has no dead zones inside and has a compact and streamlined structure, which significantly improves the flowability and heat transfer efficiency of high-viscosity colloids during the heating process, while reducing the frequency of cleaning and maintenance. It is suitable for heat treatment processes of high-viscosity fluids in food, chemical and other fields.

[0022] Example 2 An online heating device for adhesive liquid differs from Example 1 in that: 1) The ejector 11 is equipped with a steam distributor 4, and the steam distributor 4 is equipped with an injection hole 41.

[0023] In this invention, an adjustment handle 6 is provided above the steam inlet 2. After the steam enters the injector 4, it first passes through the steam distributor 4 with spray holes 41, and then is initially mixed with the adhesive in the mixing chamber 5 before being sprayed out from the gaps in the spray holes 41. By replacing the traditional nozzle with a porous micro-jet array, compared with the Laval nozzle in the traditional injector, the porous structure of the steam distributor 4 can generate more turbulence and mix with the adhesive. Moreover, the shear force of the distributor micro-jet enhances mass transfer. The injector 11 can handle high-viscosity adhesives with a viscosity of less than 100,000 cp, solving the shortcomings of easy clogging, uneven mixing, and poor adaptability to working conditions.

[0024] The steam distributor 4 is usually made of perforated thin plate or welded screen, and its mechanical strength is much lower than that of the main body of the ejector 11. If the steam is connected to the wrong interface, it may cause the steam distributor to burst; if the discharge port 3 is connected to the adhesive liquid, it may cause the system to backflow.

[0025] More specifically, the pressure at the inlet of the ejector for the adhesive is greater than 0.5 MPa, the steam pressure is greater than 0.6 MPa, and the outlet pressure is greater than 0.2 MPa. The steam pressure needs to be greater than the adhesive feed pressure to facilitate the generation of greater power by the steam distributor 4, allowing it to mix with the high-viscosity adhesive. By using mechanical energy (pump) instead of pneumatic energy (negative pressure ejector) as the conveying power, and actively pressurizing and injecting the adhesive with steam through a rotor pump, the problem of blockage in the conveying of high-viscosity, solid-containing adhesives is solved.

[0026] Example 3 An online heating device for adhesive liquid, which differs from Embodiment 1 or 2 in that: 1) A rotor pump 7 and a flow meter 9 are sequentially installed on the glue feed pipe 22, and a regulating valve 8 is also included, which is located between the rotor pump 7 and the flow meter 9; Among them, the rotor pump 7 provides power for the delivery of adhesive liquid, the regulating valve 8 is used to regulate the flow rate of adhesive liquid, and the flow meter 9 monitors and feeds back the flow data in real time.

[0027] 2) A regulating valve 20 is installed on the steam pipe 21; Used to precisely control the amount and pressure of steam entering the injector 11.

[0028] 3) The discharge pipe 23 is equipped with a glue thermometer 12 and an emulsification pump 13; The thermometer 12 is used to monitor the temperature of the adhesive solution after heating, while the emulsification pump 13 further homogenizes and emulsifies the adhesive solution to improve product stability.

[0029] 4) The ejector 11 is installed vertically, and the length of the straight pipe connecting the discharge port 3 and the emulsifying pump 13 is a, which satisfies the quantitative relationship: a≥0.5 meters.

[0030] In this embodiment, the adhesive solution sequentially passes through the adhesive solution feed pump 7, the adhesive solution flow regulating valve 8, the adhesive solution flow meter 9, the ejector 11, and the emulsifying pump 13, and mixes with the steam entering from the steam regulating valve 10 when passing through the ejector 11. By setting a ≥ 0.5m, a relatively large amount of residual swirling and turbulent flow is achieved in the adhesive solution at the outlet, resulting in uneven flow velocity distribution. The longer connecting pipe helps to eliminate turbulence and avoids local cavitation caused by uneven inflow to the emulsifying pump. Simultaneous attenuation of pressure pulsation amplitude and water hammer effect prevents excessive mechanical vibration.

[0031] The specific operation procedure for this online heating device for adhesive is as follows: (1) Start-up: Open the pipeline valve and start the glue feed pump 7. Adjust the glue flow rate through the glue feed pump 7 and the glue flow rate regulating valve 8. (2) Steam supply: After the flow rate stabilizes, steam is introduced from steam inlet 2 and the steam pressure is controlled by steam regulating valve 10 until the adhesive thermometer 12 displays the specified adhesive temperature; (3) Heating: The adhesive is initially mixed with the steam passing through the steam distributor 4 and sprayed out from the outlet 3; (4) Emulsification and mixing: The initially mixed adhesive solution is mixed by emulsification pump 13 to make the temperature of the adhesive solution more uniform.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An online heating device for adhesive liquid, characterized in that, include The injector (11) includes a steam inlet (2) at the upper right, a glue inlet (1) at the middle left, and a discharge port (3) at the bottom. Steam pipe (21) is connected to steam inlet (2) and is used to introduce heating medium; The adhesive feed pipe (22) is connected to the adhesive inlet (1) and is used to transport the high viscosity adhesive to be processed. The discharge pipe (23) is connected to the discharge port (3) and is used to discharge the mixed and heated adhesive liquid.

2. The online heating device for adhesive liquid according to claim 1, characterized in that, The injector (11) is equipped with a steam distributor (4), and the steam distributor (4) is equipped with an injection hole (41).

3. The online heating device for adhesive liquid according to claim 1, characterized in that, The adhesive feed pipe (22) is equipped with a rotor pump (7) and a flow meter (9) in sequence, and also includes a regulating valve (8) located between the rotor pump (7) and the flow meter (9); Among them, the rotor pump (7) provides power for the delivery of adhesive liquid, the regulating valve (8) is used to regulate the flow rate of adhesive liquid, and the flow meter (9) monitors and feeds back the flow data.

4. The online heating device for adhesive liquid according to claim 1, characterized in that, A regulating valve (10) is installed on the steam pipe (21).

5. The online heating device for adhesive liquid according to claim 1, characterized in that, The discharge pipe (23) is equipped with a glue thermometer (12) and an emulsification pump (13).

6. The online heating device for adhesive liquid according to claim 1, characterized in that, The ejector (11) is installed vertically, and the length of the straight pipe connecting the outlet (3) and the emulsifying pump (13) is a, which satisfies the quantitative relationship: a≥0.5 meters.

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