Entire closed-loop circulating fluidized bed as well as usage and application method thereof

A closed circuit, fluidized bed technology, applied in the field of circulating fluidized bed, can solve the problems of high operating temperature, long process flow and high processing cost, and achieve the effects of improving effective utilization, shortening process flow, and small surface heat dissipation

CN105641961AActive Publication Date: 2016-06-08KUNMING TEKANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-08

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Abstract

The invention provides an entire closed-loop circulating fluidized bed as well as usage and an application method thereof. Third generation circulating fluidized bed equipment is improved, the problems of high energy consumption and high processing cost and the like caused by moisture and slow heat exchange speed between materials and working mediums in prior process methods, such as drying, crushing, evaporation, distillation, condensation, gasification, liquefaction, and other operations are solved; entire closed circulation work and rapid normal temperature work of scaled materials are economically realized, and an economically feasible solution scheme is provided for developing works, such as improvements of output and quality of foodstuff, medicine, chemical products and other basic raw material products, as well as energy saving and consumption reduction, cleaning production, etc.
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Description

technical field

[0001] The invention relates to a fully closed-circuit circulating fluidized bed and its use and operation method, and belongs to the technical field of circulating fluidized beds. Background technique

[0002] Utility model patent 2014208581643 "medicine and edible material processing equipment", invention patent 2014108408080 "circulating fluidized bed equipment", 2014108417323 "a normal temperature airflow drying equipment" are typical representatives of the third generation circulating fluidized bed, attached figure 1 It is an embodiment of the third-generation circulating fluidized bed, consisting of fan 1, positive pressure circulation pipe 2, cyclone dust collector 3, positive pressure circulation pipe 4, dust collector branch 5, tail gas treatment device 6, molecular sieve dryer 7, Inlet airflow heating device 8, negative pressure circulation pipe 9 and adjustment device; after the atomizer 11 and feeding valve 10 on the negative pressure circulation ...

Examples

Embodiment 1

[0105] Embodiment 1: Fully closed circuit circulating fluidized bed

[0106] see figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 , a fully closed-circuit circulating fluidized bed, consisting of fan 21, cyclone dust collector 47, dust collector 42, gas treatment branch 38, negative pressure circulation pipe, discharge device and refrigeration equipment; fan 21, cyclone dust collector 47, dust collector 42 and the housing of the dust collector 39 adopt a double-layer structure, and the interlayer space is cooled by the cold air discharged from the condenser; there is a discharge port on the dust discharge pipe 49 of the cyclone dust collector, and a discharge valve 48 is arranged on the discharge port. There is a regulating valve 27 on the outlet of the dust discharge pipe of the cyclone dust collector. The gas treatment branch 38 is used to process the exhaust gas and / or the air intake airflow discharged from the equipment. The gas treatment branch 38 is compose...

Embodiment 2

[0112] Example 2: Another three implementations of the full-closed circulating fluidized bed gas treatment branch

[0113] One of the implementations of the gas processing branch, please refer to the attached Figure 7 , the gas treatment branch is composed of a condenser 106 and a heater 107 connected in sequence, the inlet 105 of the condenser 106 is the air inlet of the gas treatment branch, and the outlet 108 of the heater 107 is the air exhaust of the gas treatment branch;

[0114] For the second embodiment of the gas processing branch, please refer to the attached Figure 8 , the gas processing branch is composed of bypass valve A90, heat exchange pipe A95, shell 93, heat exchange pipe B, condenser, bypass valve C100, heat exchange pipe C96 and heater 99, and the inlet 103 of bypass valve A90 It is the air inlet of the gas processing branch. The inlet and outlet of the bypass valve A90 are provided with heat exchange tube interfaces. The bypass valve A90 has a valve pla...

Embodiment 3

[0119] Embodiment 3: The use method of fully closed-circuit circulating fluidized bed, taking the equipment described in Embodiment 1 as an example, proceed as follows:

[0120] S1. Formulation of operating system: formulate the operating temperature system according to the characteristics of the processed materials and process requirements, formulate the operating medium property system according to the characteristics of the processed materials and process requirements, and supply equipment through the operating medium supply interface to meet the operating medium property system requirements. medium;

[0121] S2. Equipment start-up: start the equipment, adjust the speed of the fan so that the working current of the fan is 40-90% of the rated current;

[0122] S3. Operation process:

[0123] S301. Feeding: Add the pre-processed materials that meet the requirements into the equipment at a constant speed through the feeding device, and stop feeding when the working current of...