High-viscosity material continuous concentration device

Abstract

A high-viscosity material continuous concentration device comprises a screw propulsion type concentrator, a screw propeller is installed in an inner cavity of the screw propulsion type concentrator, a shell of the screw propulsion type concentrator is a heating jacket, a heating coil is installed in the heating jacket, a feeding port of the screw propulsion type concentrator is connected with a feeding flow control valve and a feeding flow meter, and the feeding flow control valve is connected with a discharging port of the screw propulsion type concentrator. The discharge port is connected with a discharge pump, a discharge viscometer, a discharge flowmeter, a discharge flow control valve and a discharge reflux liquid control valve, the reflux port is connected with the discharge reflux liquid control valve, the evaporation gas phase port is connected with a gas-liquid separator through an evaporation gas phase pipe, and a liquid phase of the gas-liquid separator flows into the screw propulsion type thickener. The utility model adopts a physical method to carry out continuous concentration processing, does not add any additive, ensures the product quality, has low energy consumption, can realize large-scale production, and has wide application field.

Description

Technical Field

[0001] The utility model belongs to the processing equipment in the fields of medicine, food and chemical industry, and specifically refers to a continuous concentration device for high-viscosity materials. Background Technique

[0002] In the fields of medicine, food and chemical industry, many liquid materials need to be concentrated and dried, such as traditional Chinese medicine extracts, various plant extracts, fructooligosaccharides, instant tea powder, pharmaceutical and chemical intermediates, etc. Some adopt the low-temperature vacuum drying process for concentration and drying. This vacuum drying has high energy consumption, small drying capacity, and long drying time, and cannot meet the needs of large-scale production. Moreover, the ash content of the dried material is high, the palatability is poor, and animals have diarrhea after eating, so it cannot be popularized and applied in the breeding industry. And some adopt blending various other additives for concentration and solidification production. Adding various additives is not conducive to human food health and can only be used in certain fixed industries, restricting the popularization and application of products. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned prior art, and provide a continuous concentration device for high-viscosity materials, which adopts physical methods for concentration processing, does not add any additives, is beneficial to the environmental protection and health of products, and at the same time has low energy consumption, short concentration time, can achieve large-scale production, and has a wide application field.

[0004] The technical solution adopted by the utility model is:

[0005] A continuous concentration device for high-viscosity materials includes a screw propeller type concentrator. A screw propeller is installed in the inner cavity of the screw propeller type concentrator. The outer shell of the screw propeller type concentrator is a heating jacket, and a heating coil is installed in the heating jacket. The screw propeller type concentrator is provided with a feed inlet, a discharge outlet, a reflux port, an evaporation gas phase outlet and a liquid phase inlet. The feed inlet is connected with a feed flow control valve and a feed flow meter. The discharge outlet is connected with a discharge pump, a discharge viscosity meter, a discharge flow meter, a discharge flow control valve and a discharge reflux liquid control valve. The reflux port is connected with the discharge reflux liquid control valve. The evaporation gas phase port is connected with a gas-liquid separator through an evaporation gas phase pipe, and the liquid phase of the gas-liquid separator flows into the screw propeller type concentrator.

[0006] In the above technical solution, the gas phase of the gas-liquid separator is connected with a gas phase vacuum system.

[0007] In the above technical solution, both ends of the heating coil are respectively connected with a heat source inlet and a heat source outlet.

[0008] In the above technical solution, the gas-liquid separator is a hollow tank body. One side of the hollow tank body is connected with an evaporation gas phase pipe. The bottom of the hollow tank is connected with the liquid phase inlet of the screw propeller type concentrator through a pipeline, and the top of the hollow tank is a gas phase outlet.

[0009] The prominent substantive features and remarkable effects of the present utility model:

[0010] ① The present utility model uses a screw - propelled concentrator to concentrate high - viscosity materials. A part of the discharge of the discharge pump of the screw - propelled concentrator is returned to the screw - propelled concentrator through the discharge reflux liquid control valve for circulation, realizing continuous cyclic concentration;

[0011] ② In the screw - propelled concentrator, due to the poor fluidity of the high - viscosity materials, a screw propeller is used for propulsion;

[0012] ③ The outer shell of the screw - propelled concentrator is a heating jacket, and heating coils are installed to supply the circulation of the incoming and outgoing heat sources to heat the materials to be concentrated;

[0013] ④ The screw is respectively equipped with a feed flowmeter, a feed flow control valve, a discharge flowmeter, a viscometer, a discharge flow control valve, and a discharge reflux liquid control valve for the feed, discharge, and reflux, and interlock control is carried out to realize the whole - process optimization control of the continuous concentration process;

[0014] ⑤ The present utility model abandons the drying and concentration process with high energy consumption, small drying capacity, long drying time, and inability to carry out large - scale production. The present utility model adopts a heating jacket and a screw - propelled continuous concentration process, which has low energy consumption, large continuous production scale, and controllable quality;

[0015] ⑥ The present utility model uses an organic physical method for concentration, without adding any additives, maintaining the healthy and hygienic quality of the materials to be concentrated, and broadening the application scope. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the screw - propelled concentrator of the present utility model;

[0017] Figure 2 It is a schematic process diagram of the present utility model.

[0018] Annotations of the Drawings

[0019] 1 - Screw - propelled concentrator body, 2 - Main shaft of the screw propeller drive motor, 3 - Heat source inlet, 4 - Heat source outlet, 5 - Feed inlet, 6 - Reflux port, 7 - Concentrate outlet, 8 - Evaporation gas phase outlet, 9 - Heating coil, 10 - Heating jacket, 11 - Screw propeller, 12 - Feed flow control valve, 13 - Discharge pump, 14 - Discharge viscometer, 15 - Discharge reflux liquid control valve, 16 - Discharge flowmeter, 17 - Discharge flow control valve, 18 - Evaporation gas phase pipe, 19 - Gas - liquid separator, 20 - Connect to the gas phase vacuum system, 21 - Feed flowmeter. Detailed Embodiment

[0020] SeeFigure 1 , Figure 2 , the continuous high-viscosity material concentration device of the present utility model includes a screw propeller concentrator. A screw propeller is installed in the inner cavity of the screw propeller concentrator. The outer shell of the screw propeller concentrator is a heating jacket, and a heating coil is installed in the heating jacket. The screw propeller concentrator is provided with a feed inlet, a discharge outlet, a reflux port, an evaporation gas phase outlet and a liquid phase inlet. The feed inlet is connected with a feed flow control valve and a feed flow meter. The discharge outlet is connected with a discharge pump, a discharge viscosity meter, a discharge flow meter, a discharge flow control valve and a discharge reflux liquid control valve. The reflux port is connected with the discharge reflux liquid control valve. The evaporation gas phase port is connected with a gas-liquid separator through an evaporation gas phase pipe. The liquid phase of the gas-liquid separator flows into the screw propeller concentrator, and the gas phase of the gas-liquid separator is connected with a gas phase vacuum system. The two ends of the heating coil are respectively connected with a heat source inlet and a heat source outlet. The gas-liquid separator is a hollow tank body. One side of the hollow tank body is connected with the evaporation gas phase pipe. The bottom of the hollow tank is connected with the liquid phase inlet of the propeller concentrator through a pipeline. The top of the hollow tank is the gas phase outlet.

[0021] As Figure 1 , Figure 2 shown, in the continuous high-viscosity material concentration process using the continuous high-viscosity material concentration device, the screw propeller concentrator and the gas-liquid separator are evacuated. The external heat source is input to heat the heating jacket of the outer shell of the screw propeller concentrator through the heat source inlet and the heat source outlet of the screw propeller concentrator. The material to be concentrated enters the screw propeller concentrator after being controlled by the feed flow meter and the feed flow control valve. The liquid level of the material to be concentrated entering the screw propeller concentrator is within half of the inner cavity volume of the screw propeller concentrator. The material to be concentrated is heated and evaporated in the screw propeller concentrator. The wet gas containing moisture evaporated enters the gas-liquid separator through the evaporation gas phase pipe. The gas phase separated by the gas-liquid separator enters the gas phase vacuum system and is discharged through the evaporation gas phase pipe. The liquid phase flows into the screw propeller concentrator. During the process of heating, evaporation and concentration of the material to be concentrated, due to its high viscosity and poor fluidity, a screw propeller is used for propulsion during the process from feeding to discharging. After being pumped out by the discharge pump, a part of the discharged material flows back into the screw propeller concentrator through the discharge reflux control valve to participate in continuous concentration, and a part is discharged through the discharge flow meter and the discharge flow control valve. When the high-viscosity material has a high concentration, its viscosity changes greatly. The control of discharging is to adjust the discharge flow control valve and the discharge reflux liquid control valve through the data of the viscosity meter to perform interlock control on the continuous concentration process; in addition, the feed flow control valve and the discharge flow control valve are also adjusted according to the data of the viscosity meter to perform interlock control on the feeding and discharging amounts of continuous concentration.

[0022] The above-mentioned screw propeller concentrator and gas-liquid separator are evacuated, and the vacuum degree is controlled at -0.05 Mpa to -0.1 Mpa.

[0023] The above-mentioned material to be concentrated is heated and evaporated in a spiral propeller concentrator, and the heating temperature is 30°C to 150°C.

[0024] The viscosity of the above-mentioned material to be concentrated is 1000 cp to 1200 cp, and the concentration is 50% to 80%. After continuous concentration by the spiral propeller concentrator, the viscosity of the discharged material pumped out by the discharge pump is 10000 cp to 30000 cp, and the concentration is 90% to 98%.

[0025] Example 1: Continuous concentration of syrup:

[0026] Using a low-temperature concentrator, controlling the vacuum degree at -0.075 MPa, the heating temperature at 130°C, controlling the liquid level of the concentrator at about 1 / 2, continuously feeding syrup with a viscosity of about 1000 cp and a concentration of about 75% into the concentrator at a flow rate of 120 L / h, the evaporation temperature is 65°C, and the viscosity of the discharged material is 15000 cp. The viscosity of the discharged material is interlocked with the discharge regulating valve, and the discharge flow rate is displayed and recorded. The displayed discharge flow rate is 95 - 98 L / h, and the detected discharge concentration is 97%, meeting the process requirements.

[0027] Example 2: Using a low-temperature concentrator, controlling the vacuum degree at -0.078 MPa, the heating temperature at 130°C, controlling the liquid level of the concentrator at about 1 / 2, continuously feeding syrup with a viscosity of about 1000 cp and a concentration of about 75% into the concentrator at a flow rate of 160 L / h, the evaporation temperature is 63°C, and the viscosity of the discharged material is 15000 cp. The current of the evaporator drive motor is interlocked with the discharge regulating valve, and the discharge flow rate is displayed and recorded. The displayed discharge flow rate is 125 - 135 L / h, and the detected discharge concentration is 96%, meeting the process requirements.

[0028] Example 3: Using a low-temperature concentrator, controlling the vacuum degree at -0.099 MPa, the heating temperature at 75°C, controlling the liquid level of the concentrator at about 1 / 2, continuously feeding furan resin with a viscosity of about 1000 cp and a concentration of about 70% into the concentrator at a flow rate of 250 L / h, the evaporation temperature is 25°C, and the viscosity of the discharged material is about 10000 cp. The viscosity of the discharged material is interlocked with the discharge regulating valve, and the discharge flow rate is displayed and recorded. The displayed discharge flow rate is 180 - 195 L / h, and the detected discharge concentration is 96%, meeting the process requirements.

[0029] Example 4: Using a low-temperature concentrator, controlling the vacuum degree at -0.099 MPa, the heating temperature at 70°C, controlling the liquid level of the concentrator at about 1 / 2, continuously feeding furan resin with a viscosity of about 1200 cp and a concentration of about 75% into the concentrator at a flow rate of 140 L / h, the evaporation temperature is 25°C, and the viscosity of the discharged material is about 12000 cp. The current of the evaporator drive motor is interlocked with the discharge regulating valve, and the discharge flow rate is displayed and recorded. The displayed discharge flow rate is 100 - 110 L / h, and the detected discharge concentration is 95.8%, meeting the process requirements.

[0030] Example 5: Using a low-temperature concentrator, control the vacuum degree at -0.099 MPa, the heating temperature at 90 °C, control the liquid level of the concentrator at about 1 / 2, continuously feed the high-viscosity polydextrose with a viscosity of about 1600 cp and a concentration of about 60% into the concentrator at a flow rate of 180 L / h, the evaporation temperature is 35 °C, and the viscosity of the discharged material is about 22000 cp. The viscosity of the discharged material is interlocked with the discharge regulating valve, and the discharge flow rate is displayed and recorded. The displayed discharge flow rate is 550 - 570 L / h, and the detected concentration of the discharged material is 95.2%, meeting the process requirements.

Claims

1. A high viscosity material continuous concentration device, characterized in that: It comprises a screw-propelled concentrator, the inner cavity of which is provided with a screw propeller, the outer shell of which is a heating jacket, the heating jacket being provided with a heating coil, the screw-propelled concentrator being provided with a feed port, a discharge port, a reflux port, an evaporation gas phase outlet and a liquid phase flow inlet, the feed port being connected with a feed flow control valve and a feed flow meter, the discharge port being connected with a discharge pump and a discharge viscometer, a discharge flow meter, a discharge flow control valve and a discharge reflux liquid control valve, the reflux port being connected with a discharge reflux liquid control valve, the evaporation gas phase outlet being connected with a gas-liquid separator via an evaporation gas phase pipe, and the liquid phase of the gas-liquid separator flows into the screw-propelled concentrator.

2. The high-viscosity material continuous concentration device according to claim 1, characterized in that: The gas phase of the gas-liquid separator is connected to a gas phase vacuum system.

3. The high-viscosity material continuous concentration device according to claim 1, characterized in that: The two ends of the heating coil are respectively connected to a heat source inlet and a heat source outlet.

4. The high-viscosity material continuous concentration device according to claim 1, characterized in that: The gas-liquid separator is a hollow tank body, one side of which is connected to an evaporation gas phase pipe, the bottom of the hollow tank is connected to a liquid phase inlet of a pusher concentrator through a pipeline, and the top of the hollow tank is a gas phase outlet.

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