Antibiotic spray drying tail gas recycling device
By introducing exhaust gas preheating and spray recovery technology into the antibiotic spray drying device, the problems of exhaust gas heat energy waste and finished product loss are solved, and the effects of thermal energy recycling and finished product recycling are achieved.
Patent Information
- Application Number
- CN202421362380.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the existing antibiotic spray drying process, the exhaust gas temperature is high and contains a small amount of antibiotic powder, resulting in waste of heat energy and loss of finished products.
An antibiotic spray-drying exhaust gas recovery device is designed, including a heat exchanger box and a spray recovery system. The heat exchange box preheats the cold air in advance through the exhaust gas to reduce steam and electricity consumption; the spray recovery system uses an atomized spray head to recover the antibiotic powder in the exhaust gas into a solution.
It effectively reduces heat energy consumption, reduces production costs, and improves the utilization rate of finished products.
Smart Images
Figure CN222670621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tail gas treatment devices, in particular to an antibiotic spray drying tail gas recovery and utilization device. Background Art
[0002] Aminoglycoside antibiotics are a class of broad-spectrum antimicrobial drugs that are widely used and require therapeutic drug monitoring, mainly including gentamicin (GM), apramycin (NA), neomycin (NM), etc. In order to ensure that the above-mentioned antibiotic products are qualified microorganisms, the existing sterilization method is to first use the spray tower to preheat the spray tower at 62°C for 30 minutes to pasteurize the refined solution of neomycin sulfate entering the tower; the production of antibiotic soluble powder also needs to be dried after purification. There are many drying methods used in this step, and spray drying is usually used. Spray drying is completed in the drying cylinder, and the moist antibiotic powder particles are sprayed out in a mist form, which can be quickly dried after spraying.
[0003] Existing equipment usually filters and purifies cold air, then heats it to 165-185°C through steam and electricity, enters a spray drying tower to dry the atomized antibiotic sulfate solution, and then passes through a cyclone separator to separate the tail gas and the original antibiotic powder, so that the tail gas is directly discharged into the atmosphere; using the above method, the tail gas temperature is usually 80-110°C, and the tail gas will also contain a small amount of antibiotic powder, which has defects such as heat energy waste and finished product loss. Summary of the invention
[0004] In view of the technical problems existing in the background technology, the utility model provides an antibiotic spray drying tail gas recovery and utilization device, which can use the tail gas to preheat the dry air in advance and can also spray and recover the tail gas, thereby saving heat energy and reducing production costs.
[0005] An antibiotic spray drying tail gas recovery and utilization device comprises a heat exchange box and a drying pipe. The drying pipe is inserted through the middle of the heat exchange box. The bottom of the heat exchange box is connected with a tail gas inlet pipe and a tail gas outlet pipe. A heat exchange device is arranged inside the heat exchange box, and a spray recovery system is arranged in the tail gas outlet pipe.
[0006] In a preferred embodiment, the heat exchange device includes a heat exchange plate, which is vertically plugged into the heat exchange box and arranged equidistantly. The heat exchange plate divides the drying tube in the heat exchange box into multiple sections, and a sealant is provided on the contact surface between the heat exchange plate and the drying tube.
[0007] In a preferred solution, a mesh hole is provided in the middle of the heat exchange plate.
[0008] In a preferred embodiment, the spray recovery system includes a spray plate and a spray water pipe. The spray plate is installed on the inner wall of the exhaust gas outlet pipe and is arranged symmetrically in a ring shape. An atomizing nozzle is provided on the spray plate, and the spray plate is connected to an external spray water pipe.
[0009] In a preferred solution, a recovery port is provided on the lower end surface of the exhaust gas outlet pipe, and the recovery port is connected to a buffer box, and the lower end surface of the buffer box is connected to the recovery pipe.
[0010] In a preferred solution, guide plates are symmetrically arranged at the recovery port.
[0011] An antibiotic spray drying tail gas recovery and utilization device, the device has the following advantages:
[0012] 1. This device sets a heat exchange box to preheat the cold air required for drying with high-temperature exhaust gas. After the cold air is heated, it is heated to 165-185℃ by steam or heat exchanger, thereby effectively reducing the consumption of steam and electric energy.
[0013] 2. This device is equipped with a spray recovery system to recover the tail gas by spraying, thereby improving the utilization rate of the finished product and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] Figure 1 This is the external view of the overall structure of the utility model;
[0016] Figure 2 This is a cross-sectional view of the internal structure of the heat exchange box of the utility model;
[0017] Figure 3 This is a cross-sectional view of the internal structure of the drying tube of the utility model;
[0018] Figure 4 This is a cross-sectional view of the structure of the spray recovery system of the utility model;
[0019] Figure 5 This is a cross-sectional view of the internal structure of the tail gas outlet pipe of the utility model.
[0020] In the figure: heat exchange box 1, drying tube 2, exhaust gas inlet pipe 3, exhaust gas outlet pipe 4, heat exchange plate 5, mesh 501, spray plate 6, atomizing nozzle 601, spray water pipe 7, guide plate 8, recovery port 9, cache box 10, recovery pipe 11. DETAILED DESCRIPTION
[0021] like Figure 1As shown, an antibiotic spray drying tail gas recovery and utilization device includes a heat exchange box 1 and a drying tube 2. The drying tube 2 is inserted through the middle of the heat exchange box 1. The bottom of the heat exchange box 1 is connected with a tail gas inlet pipe 3 and a tail gas outlet pipe 4. The heat exchange box 1 is provided with a heat exchange device inside, and the tail gas outlet pipe 4 is provided with a spray recovery system. The drying cylinder sprays and dries using hot air. The heated air is transmitted through the drying tube 2. After passing through the heat exchange box 1, the internal air is preheated in advance. The preheated air is then heated again by steam or a heat exchanger to reach the required drying temperature.
[0022] The temperature of the antibiotic tail gas after drying and heating with hot air is relatively high. The tail gas is input into the heat exchange box 1 through the tail gas inlet pipe 3 to preheat the cold air in advance, thereby realizing the recycling of heat energy. At the same time, a small amount of antibiotic powder contained in the tail gas will be atomized and absorbed after passing through the spray recovery system in the outlet pipe 4, and finally form a finished solution for secondary recycling.
[0023] The preferred solution is Figure 2 and Figure 3 As shown, the heat exchange device includes a heat exchange plate 5, which is vertically plugged into the heat exchange box 1 and arranged at equal distances. The heat exchange plate 5 divides the drying tube 2 in the heat exchange box 1 into multiple sections, and a sealant is provided on the contact surface between the heat exchange plate 5 and the drying tube 2; a mesh 501 is opened in the middle of the heat exchange plate 5;
[0024] The cold air is transmitted in and out of the drying tube 2 through the mesh 501, during which it will contact the heat exchange plate 5, which is made of a material with good thermal conductivity. After being heated by the exhaust gas, the heat exchange plate 5 will exchange heat with the cold air in the drying tube 2, thereby achieving the effect of preheating in advance.
[0025] The preferred solution is Figure 4 As shown, the spray recovery system includes a spray plate 6 and a spray water pipe 7. The spray plate 6 is installed on the inner wall of the exhaust gas outlet pipe 4 and is arranged in a ring-shaped symmetrical manner. An atomizing nozzle 601 is opened on the spray plate 6. The spray plate 6 is connected to the external spray water pipe 7.
[0026] When the exhaust gas passes through the exhaust gas outlet pipe 4, the spray water pipe 7 introduces spray water to the spray plate 6, and the spray water is sprayed in four different directions on the spray plate 6 in the form of mist, achieving the effect of atomization absorption while cooling.
[0027] The preferred solution is Figure 5 As shown, a recovery port 9 is provided at the lower end surface of the exhaust gas outlet pipe 4, and the recovery port 9 is connected to a buffer box 10, and the lower end surface of the buffer box 10 is connected to a recovery pipe 11; a guide plate 8 is symmetrically provided at the end of the recovery port 9;
[0028] The antibiotic powder after atomization absorption will form a granular solution. When the granular solution passes through the bottom surface of the cache box 10, it will flow into the recovery port 9 under the guidance of the guide plate 8 and be stored in the cache box 10. The granular solution in the cache box 10 will eventually be recycled through the recovery pipe 11.
[0029] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. An antibiotic spray drying tail gas recovery and utilization device, comprising a heat exchange box (1) and a drying tube (2), characterized in that: The drying tube (2) is inserted through the middle of the heat exchange box (1), the bottom of the heat exchange box (1) is connected to the exhaust gas inlet pipe (3) and the exhaust gas outlet pipe (4), a heat exchange device is arranged inside the heat exchange box (1), and a spray recovery system is arranged inside the exhaust gas outlet pipe (4).
2. The antibiotic spray drying tail gas recovery and utilization device according to claim 1, characterized in that: The heat exchange device comprises a heat exchange plate (5), wherein the heat exchange plate (5) is vertically plugged into the heat exchange box (1) and arranged at equal distances, the heat exchange plate (5) divides the drying tube (2) in the heat exchange box (1) into multiple sections, and a sealant is provided at the contact surface between the heat exchange plate (5) and the drying tube (2).
3. The antibiotic spray drying tail gas recovery and utilization device according to claim 2, characterized in that: A mesh hole (501) is provided in the middle of the heat exchange plate (5).
4. The antibiotic spray drying tail gas recovery and utilization device according to claim 1, characterized in that: The spray recovery system comprises a spray plate (6) and a spray water pipe (7). The spray plate (6) is installed on the inner wall of the exhaust gas outlet pipe (4) and is arranged symmetrically in a ring shape. An atomizing nozzle (601) is provided on the spray plate (6). The spray plate (6) is connected to an external spray water pipe (7).
5. The antibiotic spray drying tail gas recovery and utilization device according to claim 1, characterized in that: A recovery port (9) is provided on the lower end surface of the exhaust gas outlet pipe (4), the recovery port (9) is connected to a buffer box (10), and the lower end surface of the buffer box (10) is connected to the recovery pipe (11).
6. The antibiotic spray drying tail gas recovery and utilization device according to claim 5, characterized in that: A guide plate (8) is symmetrically arranged at the end of the recovery port (9).